[strongSwan] help: ping behaviour when tunnel is not established

[Shukla, Sanjay]

I request you urgent help in understanding this behavior.

When a connection is configured in /etc/ipsec.conf but the left side of the connection is not responding (say left is unreachable) I see the ping behavior as below

root at ffd-ipsec-189 sanjay]# ping 10.204.74.188

basically ping is stuck or blocked.


Now if I do not have a connection configured in the /etc/ipsec.conf I see that the ping responds like this

root at ffd-ipsec-189 sanjay]# ping 10.204.74.188
PING 10.204.74.188 (10.204.74.188) 56(84) bytes of data.
>From 10.204.74.189 icmp_seq=2 Destination Host Unreachable
>From 10.204.74.189 icmp_seq=3 Destination Host Unreachable
>From 10.204.74.189 icmp_seq=5 Destination Host Unreachable

What settings can be done for a timeout to occurs to that a program that is trying to reach an ip may not be blocked forever if ipsec SA cannot be established ?


My connection setting as follows

#Below Are The Configuration for CCM_CCM IPSec Tunnel
conn LocalIP_LocalIP_10.204.74.188
        left=10.204.74.189
        leftcert=ServLcl.pem
        leftsendcert=yes
        leftupdown=/opt/ipc/security/ipsectunnel/rightdown.sh
        right=10.204.74.188
        rightid=%any
        keyexchange=ikev2
        type=transport
        reauth=no
        dpddelay=5s
        dpdaction=restart
        keyingtries=%forever
        auto=route

regards,
-sanjay



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