Ok I solved it.
The issue was on the nat acl :
ip nat inside source list 1 interface FastEthernet4 overload
!
access-list 1 permit 172.16.15.0 0.0.0.255
This acl made the router simply try to nat everything, even the traffic going through the tunnel.
So I replaced those 2 lines by :
route-map...
Hello,
I've been trying for some time now to make a tunnel between a cisco VPN 3005 concentrator and a SR520.
The tunnel is up when initiated by the 3005 but no data are transmitted by the SR520...
I have tried a lot of different configuration but now I'm lost and don't know what to try ...
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