initial version of OsmoGGSN user manual
Closes: OS#1721 Change-Id: I7cdf150e8dd4f9dfc5e6d28e780d05dc1e1e5458
This commit is contained in:
Neels Hofmeyr
parent
b7782d4d41
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8a1e7b8658
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# XSL stylesheets downloaded from http://docbook.sourceforge.net/release/xsl/current/html/
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# Makefile from BitBake/OpenEmbedded manuals
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TOPDIR := ..
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ASCIIDOCS := osmoggsn-usermanual
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include $(TOPDIR)/build/Makefile.asciidoc.inc
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include $(TOPDIR)/build/Makefile.inc
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osmoggsn-usermanual.pdf: chapters/*.adoc
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clean:
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rm -rf $(cleanfiles)
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== Configuring OsmoGGSN
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All configuration of OsmoGGSN is performed using the VTY. For more
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general information on the VTY interface, see FIXME.
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=== Configuring a virtual GGSN instance
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OsmoGGSN can run multiple GGSN instances inside one program/process.
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Each GGSN instance binds to its own transport-layer GTP IP address and
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has its own set of APNs and associated IP address pools + tun/gtp
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devices.
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In most usage cases, yo will only have a single GGSN instance inside
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your configuration file, like in below example:
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.Example: Single GGSN configuration section
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----
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ggsn ggsn0
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gtp state-dir /tmp
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gtp bind-ip 127.0.0.6
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apn internet
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gtpu-mode tun
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tun-device tun4
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type-support v4
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ip prefix dynamic 176.16.222.0/24
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ip dns 0 192.168.100.1
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ip dns 1 8.8.8.8
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ip ifconfig 176.16.222.0/24
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no shutdown
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----
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==== Creating/Editing a GGSN instance
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Creating/Editing a GGSN instance can be done by the following sequence
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of VTY commands:
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# <4>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Create or edit the GGSN instance `ggsn0`. The name can be any ASCII
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string, its significance is only to the local user.
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<4> Your prompt is now in the `ggsn` config node, where you can
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configure the properties of this GGSN instance.
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NOTE:: After creating a new GGSN instance, it is in `shutdown` mode. See
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FIXME to take it out of shutdown, but make sure to configure it fully
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before taking it out of shutdown.
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==== Configuring a GGSN instance
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The following two mandatory configuration statements have to be given
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for every GGSN instance:
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----
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OsmoGGSN(config-ggsn)# gtp state-dir /var/lib/ggsn/ggsn0 <1>
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OsmoGGSN(config-ggsn)# gtp bind-ip 127.0.0.6 <2>
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----
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<1> Store the GSN restart state in the specified directory
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<2> Bind the GGSN instance to the specified local IPv4 address
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There are some further configuration statements that can be used at the
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GGSN node, some examples are given below. For a full list, see the
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OpenGGSN VTY reference manual (FIXME).
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----
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OsmoGGSN(config-ggsn)# default-apn foobar <1>
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----
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<1> Configure a default APN to be used if the user-requested APN is not
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found. The named APN must previously be configured
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==== Deleting a GGSN instance
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A GGSN instance can be removed like this
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.Example: Deleting a GGSN instance
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# no ggsn ggsn0 <3>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Delete the GGSN instance
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==== Taking a GGSN instance out of shutdown
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.Example: Taking a GGSN instance out of shutdown
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# no shutdown ggsn <4>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config ndoe of the GGSN instance `ggsn0`
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<4> Take the GGSN instance out of shutdown
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==== Shutting a GGSN instance down
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If you would like to take a GGSN instance out of service, you can
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put it into shutdown mode. This will make the entire GGSN unavailable
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to user traffic and permit you to e.g. reconfigure it before taking it
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out of shutdown again.
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.Example: Shutting down a GGSN instance
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# shutdown ggsn <4>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config ndoe of the GGSN instance `ggsn0`
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<4> Shut down the GGSN instance
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=== Configuring an Access Point Name
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An Access Point Name (APN) represents a connection to an external packet
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data network, such as the public Internet or private corporate networsk.
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APNs are selected by terminals (MS/UE) when establishing PDP contexts.
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Each OsmoGGSN GGSN instance can have any number of APNs configured.
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Each APN is identified by a string name.
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==== Creating/Editing an APN
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.Example: Creating a new APN
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# apn internet <4>
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OsmoGGSN(config-ggsn-apn)# <5>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config node of the GGSN instance `ggsn0`
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<4> Create or Edit an APN called `internet`
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<5> Your prompt is now in the `ggsn` config node, where you can
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configure the properties of this GGSN instance.
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NOTE:: The newly-create APN is created in `shutdown` mode. See FIXME to take it
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out of shutdown.
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==== Configuring an APN
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.Example: Configuring an APN
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----
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OsmoGGSN(config-ggsn-apn)# gtpu-mode tun <1>
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OsmoGGSN(config-ggsn-apn)# type-support v4 <2>
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OsmoGGSN(config-ggsn-apn)# ip prefix dynamic 176.16.222.0/24 <3>
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OsmoGGSN(config-ggsn-apn)# ip dns 0 192.168.100.1 <4>
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OsmoGGSN(config-ggsn-apn)# ip dns 1 8.8.8.8 <5>
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OsmoGGSN(config-ggsn-apn)# ip ifconfig 176.16.222.0/24 <6>
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----
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<1> Use the userspace GTP-U handling using a TUN device
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<2> Support (only) IPv4 Addresses
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<3> Specify the pool of dynamic IPv4 addresses to be allocated to PDP
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contexts
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<4> Specify the primary DNS server to be provided using IPCP/PCO
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<5> Specify the secondary DNS server to be provided using IPCP/PCO
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<6> Request OsmoGGSN to configure the `tun4` device network/netmask
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NOTE:: If you use the optional `ip ifconfig` command to set the network
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device address/mask, OsmoGGSN must run with root or `CAP_NET_ADMIN`
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support. It might be better to configure related tun devices at system
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startup and run OsmoGGSN as non-privileged user. See FIXME for more
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details.
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==== Deleting an APN
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An APN configuration can be removed like this
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.Example: Deleting an APN
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# no apn internet <4>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config node of the GGSN instance `ggsn0`
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<4> Delete the APN `internet`
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==== Taking an APN out of shutdown
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In order to bring a deactived APN in `shutdown` state into active
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operation, use the `no shutdown` command at the APN node as explained in
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the following example:
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.Example: Taking an APN out of shutdown
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# apn internet <4>
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OsmoGGSN(config-ggsn-apn)# no shutdown <5>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config ndoe of the GGSN instance `ggsn0`
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<4> Enter the config ndoe of the APN `internet`
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<5> Take the APN out of shutdown
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==== Shutting an APN down
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If you would like to take an APN instance out of service, you can
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put it into shutdown mode. This will make the APN unavailable
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to user traffic and permit you to e.g. reconfigure it before taking it
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out of shutdown again.
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.Example: Shutting down an APN
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----
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OsmoGGSN> enable <1>
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OsmoGGSN# configure terminal <2>
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OsmoGGSN(config)# ggsn ggsn0 <3>
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OsmoGGSN(config-ggsn)# apn internet <4>
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OsmoGGSN(config-ggsn-apn)# shutdown <5>
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----
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<1> Change into privileged mode
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<2> Enter the interactive configuration mode
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<3> Enter the config ndoe of the GGSN instance `ggsn0`
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<4> Enter the config ndoe of the APN `internet`
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<5> Shut down the APN
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@ -0,0 +1,145 @@
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[[chapter_introduction]]
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== Overview
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[[intro_overview]]
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=== About OsmoGGSN
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OsmoGGSN is a Free / Open Source Software implementation of the GPRS
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GGSN (Gateway GPRS support node) element in side the packet switched
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core network of 2G and 3G cellular networks.
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The GGSN function is the tunnel endpoint on the core network side,
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from where the external (IP) packet data network
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=== Software Components
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==== GTP Implementation (libgtp)
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The OsmoGGSN source code includes a shared library implementation of
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the GTP protocol used on the GGSN-SGSN interface. This library
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and associated header files are installed system-wide and are
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available to other programs/applications.
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In fact, libgtp is what the OsmoSGSN also uses for its use of GTP.
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==== sgsnemu
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In order to test OsmoGGSN without running a SGSN and other elements
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of a cellular network, there is a small command-line utility called
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*sgsnemu* which is able to simulate the customary operations of a SGSN
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towards the GGSN, such as a PDP Context Activation.
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*sgsnemu* can even be used for testing against other GGSNs, as the GTP
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protocol is standardized across implementations.
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==== osmo-ggsn
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*osmo-ggsn* is the actual name of the OsmoGGSN executable program. It
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implements the GGSN functionality. All parameters are set using the
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configuration file, by default located in *./osmo-ggsn.cfg*
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==== systemd service file
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In *contrib/osmo-ggsn.service* you can find a sample service file for
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OsmoGGSN which can be used with systemd.
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==== init script
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In *contrib/osmo-ggsn.init* you can find a sample init script to be used
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on systems with classic init process.
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=== Limitations
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OsmoGGSN supports both GTP0 (GSM 09.60) and GTP1 (3GPP 29.060). In the
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following tables the support of each individual message type is
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detailed. The numbers before each feature indicates the relevant
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section in the standard.
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==== GSM 09.60 (GTPv0)
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[options="header",cols="50%,15%,15%,15%,5%"]
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|===
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| Feature | gtplib | osmo-ggsn | sgsnemu | notes
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5+<|*7.4 Path Management Messages*
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|7.4.1 Echo Request |Supported |Supported |Supported |
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|7.4.2 Echo Response |Supported |Supported |Supported |
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|7.4.3 Version Not Supported |Supported |Supported |Supported |
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5+<| *7.5 Tunnel Management Messages*
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|7.5.1 Create PDP Context Request|Supported |Supported |Supported |
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|7.5.2 Create PDP Context Response|Supported |Supported |Supported |
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|7.5.3 Update PDP Context Request|Supported |Supported |Not |
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|7.5.4 Update PDP Context Response|Supported |Supported |Not |
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|7.5.5 Delete PDP Context Request|Supported |Supported |Supported |
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|7.5.6 Delete PDP Context Response|Supported |Supported |Supported |
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|7.5.7 Create AA PDP Context Request|Unsupported |Unsupported |Unsupported |
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|7.5.8 Create AA PDP Response|Unsupported |Unsupported |Unsupported |
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|7.5.9 Delete AA PDP Context Request|Unsupported |Unsupported |Unsupported |
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|7.5.10 Delete AA PDP Context Response|Unsupported |Unsupported |Unsupported |
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|7.5.11 Error Indication |Supported |Supported |Supported |
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|7.5.12 PDU Notification Request|Unsupported |Unsupported |Unsupported |
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|7.5.13 PDU Notification Response|Unsupported |Unsupported |Unsupported |
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|7.5.14 PDU Notification Reject Request|Unsupported |Unsupported |Unsupported |
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|7.5.15 PDU Notification Reject Response|Unsupported |Unsupported |Unsupported |
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5+<| *7.6 Location Management Messages*
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|7.6.1 Send Routeing Information for GPRS Request|Unsupported |Unsupported |Not applicable |
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|7.6.2 Send Routeing Information for GPRS Response|Unsupported |Unsupported |Not applicable |
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|7.6.3 Failure Report Request|Unsupported |Unsupported |Not applicable |
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|7.6.3 Failure Report Response|Unsupported |Unsupported |Not applicable |
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|7.6.5 Note MS GPRS Present Request|Unsupported |Unsupported |Not applicable|
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|7.6.6 Note MS GPRS Present Response|Unsupported |Unsupported |Not applicable|
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5+<| *7.5 Mobility Management Messages*
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|7.5.1 Identification Request|Unsupported |Not applicable|Not applicable|
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|7.5.2 Identification Response|Unsupported |Not applicable|Not applicable |
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|7.5.3 SGSN Context Request|Unsupported |Not applicable|Not applicable|
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|7.5.4 SGSN Context Response|Unsupported |Not applicable|Not applicable|
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|7.5.5 SGSN Context Acknowledge|Unsupported |Not applicable|Not applicable|
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|===
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==== 3GPP 29.060 (GTPv1)
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[options="header",cols="50%,15%,15%,15%,5%"]
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|===
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|Feature |gtplib |osmo-ggsn |sgsnemu |notes
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5+<|*7.2 Path Management Messages*
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|7.2.1 Echo Request |Supported |Supported |Supported |
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|7.2.2 Echo Response |Supported |Supported |Supported |
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|7.2.3 Version Not Supported|Supported |Supported |Supported |
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|7.2.4 Extension Headers Notification|Supported |Supported |Supported |
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5+<|*7.3 Tunnel Management Messages*
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|7.3.1 Create PDP Context Request|Supported |Supported |Supported |1
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|7.3.2 Create PDP Context Response|Supported |Supported |Supported |
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|7.3.3 Update PDP Context Request|Supported |Supported |Not applicable|1
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|7.3.4 Update PDP Context Response|Supported |Supported |Not applicable|
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|7.3.5 Delete PDP Context Request|Supported |Supported |Supported |
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|7.3.6 Delete PDP Context Response|Supported |Supported |Supported |
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|7.3.7 Error Indication |Supported |Supported |Supported |
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|7.3.8 PDU Notification Request|Unsupported |Unsupported |Unsupported |
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|7.3.9 PDU Notification Response|Unsupported |Unsupported |Unsupported |
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|7.3.10 PDU Notification Reject Request|Unsupported |Unsupported |Unsupported |
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|7.3.10 PDU Notification Reject Response|Unsupported |Unsupported |Unsupported |
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5+<|*7.4 Location Management Messages*
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|7.4.1 Send Routeing Information for GPRS Request|Unsupported |Unsupported |Not applicable |
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||||
|7.4.2 Send Routeing Information for GPRS Response|Unsupported |Unsupported |Not applicable |
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|7.4.3 Failure Report Request|Unsupported |Unsupported |Not applicable|
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|7.4.3 Failure Report Response|Unsupported |Unsupported |Not applicable|
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|7.4.5 Note MS GPRS Present Request|Unsupported |Unsupported |Not applicable|
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|7.4.6 Note MS GPRS Present Response|Unsupported |Unsupported |Not applicable|
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5+<|*7.5 Mobility Management Messages*
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|7.5.1 Identification Request|Unsupported |Not applicable|Not applicable|
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|7.5.2 Identification Response|Unsupported |Not applicable |Not applicable|
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|7.5.3 SGSN Context Request|Unsupported |Not applicable|Not applicable|
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|7.5.4 SGSN Context Response|Unsupported |Not applicable |Not applicable|
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|7.5.5 SGSN Context Acknowledge|Unsupported |Not applicable|Not applicable|
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|7.5.6 Forward Relocation Request|Unsupported |Not applicable|Not applicable|
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|7.5.7 Forward Relocation Response|Unsupported |Not applicable|Not applicable|
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|7.5.8 Forward Relocation Complete|Unsupported |Not applicable|Not applicable|
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|7.5.9 Relocation Cancel Request|Unsupported |Not applicable|Not applicable|
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|7.5.10 Relocation Cancel Response|Unsupported |Not applicable|Not applicable|
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|7.5.11 Forward Relocation Complete |Unsupported |Not applicable |Not applicable |
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|7.5.12 Forward SRNS Context Acknowledge|Unsupported |Not applicable|Not applicable|
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|7.5.13 Forward SRNS Context|Unsupported |Not applicable|Not applicable|
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|===
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Notes
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1) The "Secondary PDP Context Activation Procedure" is not supported.
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@ -0,0 +1,41 @@
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== Running OsmoNITB
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The OsmoGGSN executable (`osmo-ggsn`) offers the following command-line
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arguments:
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=== SYNOPSIS
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||||
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||||
*osmo-ggsn* [-h|-V] [-D] [-c 'CONFIGFILE']
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=== OPTIONS
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*-h, --help*::
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Print a short help message about the supported options
|
||||
*-V, --version*::
|
||||
Print the compile-time version number of the OsmoBTS program
|
||||
*-D, --daemonize*::
|
||||
Fork the process as a daemon into background.
|
||||
*-c, --config-file 'CONFIGFILE'*::
|
||||
Specify the file and path name of the configuration file to be
|
||||
used. If none is specified, use `osmo-ggsn.cfg` in the current
|
||||
working directory.
|
||||
|
||||
=== Multiple instances
|
||||
|
||||
Running multiple instances of `osmo-ggsn` is possible if all GGSN instances
|
||||
are binding to different local IP addresse and all other interfaces (VTY,
|
||||
OML) are separated using the appropriate configuration options. The IP based
|
||||
interfaces are binding to local host by default. In order to separate the
|
||||
processes, the user has to bind those services to specific but different
|
||||
IP addresses.
|
||||
|
||||
The VTY and the control interface can be bound to IP addresses from the loopback
|
||||
address range.
|
||||
|
||||
.Example: Binding VTY and control interface to a specific ip-address
|
||||
----
|
||||
line vty
|
||||
bind 127.0.0.2
|
||||
ctrl
|
||||
bind 127.0.0.2
|
||||
----
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
<revhistory>
|
||||
<revision>
|
||||
<revnumber>1</revnumber>
|
||||
<date>August 2017</date>
|
||||
<authorinitials>HW</authorinitials>
|
||||
<revremark>
|
||||
Initial version.
|
||||
</revremark>
|
||||
</revision>
|
||||
</revhistory>
|
||||
|
||||
<authorgroup>
|
||||
<author>
|
||||
<firstname>Harald</firstname>
|
||||
<surname>Welte</surname>
|
||||
<email>hwelte@sysmocom.de</email>
|
||||
<authorinitials>HW</authorinitials>
|
||||
<affiliation>
|
||||
<shortaffil>sysmocom</shortaffil>
|
||||
<orgname>sysmocom - s.f.m.c. GmbH</orgname>
|
||||
<jobtitle>Managing Director</jobtitle>
|
||||
</affiliation>
|
||||
</author>
|
||||
</authorgroup>
|
||||
|
||||
<copyright>
|
||||
<year>2013-2017</year>
|
||||
<holder>sysmocom - s.f.m.c. GmbH</holder>
|
||||
</copyright>
|
||||
|
||||
<legalnotice>
|
||||
<para>
|
||||
Permission is granted to copy, distribute and/or modify this
|
||||
document under the terms of the GNU Free Documentation License,
|
||||
Version 1.3 or any later version published by the Free Software
|
||||
Foundation; with no Invariant Sections, no Front-Cover Texts,
|
||||
and no Back-Cover Texts. A copy of the license is included in
|
||||
the section entitled "GNU Free Documentation License".
|
||||
</para>
|
||||
<para>
|
||||
The Asciidoc source code of this manual can be found at
|
||||
<ulink url="http://git.osmocom.org/osmo-gsm-manuals/">
|
||||
http://git.osmocom.org/osmo-gsm-manuals/
|
||||
</ulink>
|
||||
</para>
|
||||
</legalnotice>
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
OsmoGGSN User Manual
|
||||
====================
|
||||
Harald Welte <hwelte@sysmocom.de>
|
||||
|
||||
|
||||
include::../common/chapters/preface.adoc[]
|
||||
|
||||
include::chapters/overview.adoc[]
|
||||
|
||||
include::chapters/running.adoc[]
|
||||
|
||||
//include::chapters/control.adoc[]
|
||||
|
||||
include::../common/chapters/vty.adoc[]
|
||||
|
||||
include::../common/chapters/logging.adoc[]
|
||||
|
||||
|
||||
include::chapters/configuration.adoc[]
|
||||
|
||||
include::../common/chapters/control_if.adoc[]
|
||||
|
||||
include::../common/chapters/port_numbers.adoc[]
|
||||
|
||||
include::../common/chapters/bibliography.adoc[]
|
||||
|
||||
include::../common/chapters/glossary.adoc[]
|
||||
|
||||
include::../common/chapters/gfdl.adoc[]
|
||||
Loading…
Reference in New Issue