carol::ipsec status 2> /dev/null::home.*ESTABLISHED.*carol@strongswan.org.*moon.strongswan.org::YES moon:: ipsec status 2> /dev/null::rw.*ESTABLISHED.*moon.strongswan.org.*carol@strongswan.org::YES carol::ipsec status 2> /dev/null::home.*INSTALLED, TUNNEL.*IPCOMP::YES moon:: ipsec status 2> /dev/null::rw.*INSTALLED, TUNNEL.*IPCOMP::YES moon:: cat /var/log/daemon.log::IKE_AUTH request.*N(IPCOMP_SUP)::YES moon:: cat /var/log/daemon.log::IKE_AUTH response.*N(IPCOMP_SUP)::YES moon:: ip xfrm state::proto comp spi::YES carol::ip xfrm state::proto comp spi::YES # send two pings because the first is lost due to Path MTU Discovery between alice and moon carol::ping6 -c 2 -W 1 -s 8184 -p deadbeef ip6-alice.strongswan.org::8192 bytes from ip6-alice.strongswan.org::YES # reduce the size as the default is already larger than the threshold of 90 bytes carol::ping6 -c 1 -s 40 ip6-alice.strongswan.org::48 bytes from ip6-alice.strongswan.org::YES moon::tcpdump::IP6 ip6-carol.strongswan.org > ip6-moon.strongswan.org: ESP::YES moon::tcpdump::IP6 ip6-moon.strongswan.org > ip6-carol.strongswan.org: ESP::YES