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cs7-config.adoc: Improve doc on default SS7 SCTP addresses 

Related: OS#5186
Change-Id: Ic8d9c00ae50907f1adad8f70b773e7b1362c4f50
This commit is contained in:
Pau Espin 2021-10-05 17:25:26 +02:00
parent 581ef10981
commit b92c3ae264
1 changed files with 13 additions and 3 deletions
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common/chapters/cs7-config.adoc
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@ -76,9 +76,6 @@ for SCCP-level message exchange between all the connected programs.
=== Connect to STP Instance
By default, an STP instance is assumed to listen on the default M3UA port
(2905) on the local host (127.0.0.1).
Establishing an SCCP/M3UA link towards a remote STP instance can be configured
as:
@ -93,6 +90,19 @@ cs7 instance 0
Be aware that such an `asp` needs to be linked to an `as`, see <<as_and_asp>>.
By default, an STP instance is assumed to listen on the default M3UA port
(2905) on the local host. That means in general `127.0.0.1` will be used as
default remote SCTP address, and `::1` will be added to the SCTP association if
IPv6 support is available on the system.
NOTE: OsmoSTP listens by default on `::` if IPv6 is enabled on the system,
and on `0.0.0.0` otherwise. Address `::` actually superseeds `0.0.0.0`, meaning
it will listen on all IPv4 and IPv6 addresses available on the system.
CAUTION: Some applications overwrite the default target remote address to
be `localhost`. If IPv6 support is available on the system, `localhost` will
usually resolve to `::1`, otherwise it will usually resolve to `127.0.0.1`.
=== Local Point-Code
Each CNI program on an SCCP/M3UA link typically has a local point-code,