I have a tunnel set up between two 2611 routers over a DSL connection using Zhone Paradyne modems, the problem is I cannot ping the destination tunnel address, I can ping the DSL internet address proving connectivity between the two. To further complicate matters I can ping a second tunnel address located somewhere else. I have tried using tunnnel mode ipip but this has not solved the problem. All ip routes are set up as required.
thanks for your input, the tun2 destination address is not in the range you say, it's actually an internet IP starting 190.X.X.X as supplied to our DSL line by the ISP.
I should have made this clearer in my original Post.
The thing that puzzles me is that I can ping a tunnel address (there are 2 tunnels set up) back to the UK from this router and vice versa, but not the tunnel address that is between the two routers out in that country, not sure if it has anything to do with MTU size, but would not have thought so as otherwise it wouldn't be able to ping the other tunnel. Also GRE must be enabled on the Paradyne router as again it wouldn't have allowed ping to the one tunnel.
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