I have a router that's at an external location. When I ping the router's outside IP i simply get a "request time out" error.When I ping the ip address of the ISP routers which my default gateway i get reply with TTL expired in transit. I understand that there might be a loop but since i get the ttl error on the isp modem, does that change things? I called the ISP and they're saying there is nothing going on their end.
Now, I had significant issues last night with this router, turned out to be a tunnel issue which is very add and hard to believe, but today the router went down almost at the same time, tunnel is down obviously. When I was troubleshooting the tunnel issuse, it looked like ACLS where limiting traffic through. Once i corrected the ACLS's everything seemed like it returned to normal. Now, i cannot ping the router, i get tsl errors on the isp modem. Any ideas?