Hi everybody.

 

I need to establish an IPSEC tunnel with a Huawei firewall model Eudemon 200.  
Everything seems to work fine for some minutes, then the outgoing traffic from 
my end to the Huawei's end is dropped at the destination; according to Huawei 
the firewall complains that the SA is invalid.

 

It seems that at some point the Huawei firewall renegotiates the phase 2 SAs 
way before it even expires (default 3600 seconds); this only happens on 
outbound traffic (my side), the inbound SA (again my side) is correct and I can 
receive echo request packets from the LAN behind the Huawei firewall.

 

We've check the SAs using vpn -u on our side, and my outbound SA is different 
than their inbound SA, this is strange since this usually happens way before 
the 3600 seconds are up (phase 2).

 

I'm using a cluster of secureplatform servers running R60, with a single VPN 
community for all my other customers VPNs; this is the only one giving me a 
hard time.

 

Any ideas would be of great help, since we've been at this for a number of 
weeks now, and we're really starting to run out of good ideas.

 

Thanks,

 

Raúl


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