Hi - I still have a problem with this. We have a site to site vpn with gre which up until today had tested ok. The VPN is up ok, the gre tunnel is up ok and we can ping between sites. For a 32byte ping, response between sites is 99% but as you increase the packets size to say 500 bytes loss increases.
I have implemented mss-adjust to 1350 and all the other gre/ipsec things like that.
Has anyone had a problem like this. We have a pix at one end and an 828 rtr at the other. The 828 is running gre/ipsec with 12.3(8)T. PIX is on 6.3(3).
GRE terminates to another roter off the PIX.
Regards
