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Full Discussion: VPN IPSec Openswan
Special Forums IP Networking VPN IPSec Openswan Post 302909827 by ivancd on Sunday 20th of July 2014 07:34:22 AM
Old 07-20-2014
Hi,

As i can see now, the packets start to go through the right interface with the right address but no reply still. The tunnels after a long time it getting established. If i make service ipsec restart ... the first think what iv got from the ipsec auto --up tunnel name or ipsec auto --status is this:

Quote:
000 #7: "tunnelname":500 STATE_MAIN_I1 (sent MI1, expecting MR1); EVENT_RETRANSMIT in 2s; nodpd; idle; import:admin initiate
000 #7: pending Phase 2 for "tunnelname" replacing #0
After some time the tunnels status is:

Quote:
000 #22: "tunnelname":500 STATE_QUICK_I2 (sent QI2, IPsec SA established); EVENT_SA_REPLACE_IF_USED in 27637s; newest IPSEC; eroute owner; isakmp#7; idle; import:admin initiate
000 #22: "tunnelname" esp.b18cc17@<pub_ip_other_site> esp.c59dvg@<pub_ip_my_site> tun.0@<pub_ip_other_site> tun.0@<pub_ip_my_site> ref=0 refhim=4294901761
000 #7: "tunnelname":500 STATE_MAIN_I4 (ISAKMP SA established); EVENT_SA_REPLACE_IF_USED in 27870s; newest ISAKMP; lastdpd=-1s(seq in:0 out:0); idle; import:admin initiate
000
Here is the list of the iptables:

Quote:
iptables -t nat -L
Chain PREROUTING (policy ACCEPT)
target prot opt source destination

Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MYNAT all -- 172.28.2.0/24 anywhere

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Chain MYNAT (4 references)
target prot opt source destination
MASQUERADE all -- anywhere anywhere

[Itecor_VPN:main.linux64 ipsec.d]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
And this is the ping and tracepath results:

Quote:
ping 172.16.3.9
PING 172.16.3.9 (172.16.3.9) 56(84) bytes of data.
^C
--- 172.16.3.9 ping statistics ---
12 packets transmitted, 0 received, 100% packet loss, time 11338ms

tracepath -n 172.16.3.9
1?: [LOCALHOST] pmtu 1464
1: 172.28.2.1 0.943ms pmtu 1446
1: no reply
^C
 

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_STACKMANAGER(8)						Executable programs						  _STACKMANAGER(8)

NAME
ipsec__stackmanager - internal script to bring up kernel components for Libreswan SYNOPSIS
ipsec _stackmanager start ipsec _stackmanager stop DESCRIPTION
ipsec _stackmanager is called from within the init sub-system (systemd, upstart, sysv initscripts) to bring up the Libreswan kernel component as configured via the protostack= option in the ipsec.confi configuration file. This involves loading and optionally unloading of the required kernel modules. Because the Linux kernel cannot autodetect most crypto related drivers on-demand, _stackmanager handles loading the hardware random number (RNG) device drivers, OpenBSD/FreeBSD Cryptographic Framework (OCF) drivers, CryptoAPI drivers, and the modules for the specific stack (Linux NETKEY/XFM or KLIPS/MAST). Probing for OCF supported hardware is not supported - those modules must be loaded by the system before the start of the Libreswan sub system. SEE ALSO
ip(8), ipsec_tncfg(8), ipsec.conf(5), ipsec_addconn(8), pluto(8) HISTORY
This script was introduced in Libreswan. On the older Openswan systems, this functionality was split over various script files such as ipsec _startnetkey, ipsec _startklips, ipsec _realsetup and ipsec setup. Man page written for the Libreswan project <http://www.libreswan.org/> by Paul Wouters. AUTHOR
Paul Wouters placeholder to suppress warning libreswan 12/16/2012 _STACKMANAGER(8)
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