[strongSwan] VPN tunnel up but not child_sas

[christopher kamutumwa]

Hi,

i have strongswan and the child nodes pings at times and stop pinging
randomly and dont ping anymore and this will happen again and again. below
is an example. please help as to why this happens. after child_sa establish
then lose connection

GW01>ping -a 172.25.48.36 192.168.200.177
  PING 192.168.200.177: 56  data bytes, press CTRL_C to break
    Request time out
    Reply from 192.168.200.177: bytes=56 Sequence=2 ttl=64 time=204 ms
    Reply from 192.168.200.177: bytes=56 Sequence=3 ttl=64 time=206 ms
    Reply from 192.168.200.177: bytes=56 Sequence=4 ttl=64 time=204 ms
    Reply from 192.168.200.177: bytes=56 Sequence=5 ttl=64 time=206 ms

  --- 192.168.200.177 ping statistics ---
    5 packet(s) transmitted
    4 packet(s) received
    20.00% packet loss
    round-trip min/avg/max = 204/205/206 ms

GW01>ping -a 172.25.48.36 192.168.200.177
  PING 192.168.200.177: 56  data bytes, press CTRL_C to break
    Request time out
    Request time out
    Request time out
    Request time out
    Request time out
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