testing: Added swanctl/net2net-multicast scenario
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A connection between the subnets behind the gateways <b>moon</b> and <b>sun</b> is set up.
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Using the <b>forecast</b> plugin additionally all 224.0.0.251 mDNS multicasts are going
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to be tunneled.
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The authentication is based on <b>X.509 certificates</b>. Upon the successful
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establishment of the IPsec tunnel, mDNS multicasts sent by <b>alice</b> are
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received by <b>bob</b> and vice versa whereas unfortunately multicasts originating
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from the gateways <b>moon</b> and <b>sun</b> themselves are not tunneled.
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alice::traceroute -p 5353 -w 1 -q 1 -m 1 224.0.0.251::traceroute::YES
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bob:: traceroute -p 5353 -w 1 -q 1 -m 1 224.0.0.251::traceroute::YES
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moon:: traceroute -p 5353 -w 1 -q 1 -m 1 224.0.0.251::traceroute::YES
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sun:: traceroute -p 5353 -w 1 -q 1 -m 1 224.0.0.251::traceroute::YES
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moon::swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.1 local-port=500 local-id=moon.strongswan.org remote-host=192.168.0.2 remote-port=500 remote-id=sun.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=MODP_3072.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.0/16 224.0.0.251/32] remote-ts=\[10.2.0.0/16 224.0.0.251/32]::YES
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sun:: swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-port=500 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-port=500 remote-id=moon.strongswan.org.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=MODP_3072.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16 224.0.0.251/32] remote-ts=\[10.1.0.0/16 224.0.0.251/32]::YES
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sun::tcpdump::IP moon.strongswan.org > sun.strongswan.org: ESP::YES
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sun::tcpdump::IP sun.strongswan.org > moon.strongswan.org: ESP::YES
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alice::tcpdump::IP bob.strongswan.org.*224.0.0.251::YES
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alice::tcpdump::IP moon1.strongswan.org.*224.0.0.251::YES
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alice::tcpdump::IP sun1.strongswan.org.*224.0.0.251::NO
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bob::tcpdump::IP alice.strongswan.org.*224.0.0.251::YES
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bob::tcpdump::IP sun1.strongswan.org.*224.0.0.251::YES
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bob::tcpdump::IP moon1.strongswan.org.*224.0.0.251::NO
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# /etc/strongswan.conf - strongSwan configuration file
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swanctl {
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load = pem pkcs1 x509 revocation constraints pubkey openssl random
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}
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charon {
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load = random nonce aes sha1 sha2 pem pkcs1 gmp x509 curl revocation hmac kernel-netlink socket-default forecast vici
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start-scripts {
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creds = /usr/local/sbin/swanctl --load-creds
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conns = /usr/local/sbin/swanctl --load-conns
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}
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multiple_authentication = no
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plugins {
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forecast {
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groups = 224.0.0.251
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interface = eth1
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}
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}
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}
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connections {
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gw-gw {
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local_addrs = 192.168.0.1
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remote_addrs = 192.168.0.2
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local {
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auth = pubkey
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certs = moonCert.pem
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id = moon.strongswan.org
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}
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remote {
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auth = pubkey
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id = sun.strongswan.org
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}
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children {
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net-net {
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local_ts = 10.1.0.0/16,224.0.0.251/32
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remote_ts = 10.2.0.0/16,224.0.0.251/32
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mark_in = %unique
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mark_out = %unique
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updown = /usr/local/libexec/ipsec/_updown iptables
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rekey_time = 5400
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rekey_bytes = 500000000
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rekey_packets = 1000000
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esp_proposals = aes128gcm128-modp3072
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}
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}
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version = 2
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mobike = no
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reauth_time = 10800
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proposals = aes128-sha256-modp3072
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}
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}
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = random nonce aes sha1 sha2 pem pkcs1 gmp x509 curl revocation hmac kernel-netlink socket-default forecast vici
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start-scripts {
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creds = /usr/local/sbin/swanctl --load-creds
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conns = /usr/local/sbin/swanctl --load-conns
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}
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multiple_authentication = no
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plugins {
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forecast {
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groups = 224.0.0.251
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interface = eth1
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}
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}
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}
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connections {
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gw-gw {
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local_addrs = 192.168.0.2
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remote_addrs = 192.168.0.1
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local {
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auth = pubkey
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certs = sunCert.pem
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id = sun.strongswan.org
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}
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remote {
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auth = pubkey
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id = moon.strongswan.org
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}
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children {
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net-net {
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local_ts = 10.2.0.0/16,224.0.0.251/32
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remote_ts = 10.1.0.0/16,224.0.0.251/32
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mark_in = %unique
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mark_out = %unique
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updown = /usr/local/libexec/ipsec/_updown iptables
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rekey_time = 5400
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rekey_bytes = 500000000
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rekey_packets = 1000000
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esp_proposals = aes128gcm128-modp3072
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}
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}
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version = 2
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mobike = no
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reauth_time = 10800
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proposals = aes128-sha256-modp3072
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}
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}
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moon::swanctl --terminate --ike gw-gw 2> /dev/null
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moon::service charon stop 2> /dev/null
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sun::service charon stop 2> /dev/null
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moon::echo 1 > /proc/sys/net/ipv4/igmp_max_memberships
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sun::echo 1 > /proc/sys/net/ipv4/igmp_max_memberships
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moon::service charon start 2> /dev/null
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sun::service charon start 2> /dev/null
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moon::expect-connection gw-gw
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sun::expect-connection gw-gw
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moon::swanctl --initiate --child net-net 2> /dev/null
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#!/bin/bash
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#
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# This configuration file provides information on the
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# guest instances used for this test
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# All guest instances that are required for this test
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#
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VIRTHOSTS="alice moon winnetou sun bob"
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# Corresponding block diagram
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#
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DIAGRAM="a-m-w-s-b.png"
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# Guest instances on which tcpdump is to be started
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#
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TCPDUMPHOSTS="alice sun bob"
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# Guest instances on which IPsec is started
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# Used for IPsec logging purposes
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#
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IPSECHOSTS="moon sun"
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# charon controlled by swanctl
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#
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SWANCTL=1
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