I am trying to configure a 1720 router with T1 link. From the 1720 I can ping the other ends LAN and WAN interfaces. From Anywhere else on the network I can only ping the WAN interface. A trace shows it dying at the WAN interface. Only static routes are set on the 1720. It just seems that the router is not routing from LAN to WAN.
From the 1720 you can ping the remote LAN, but from LAN on 1720 cannot ping REMOTE LAN. Would first take a look at the REMOTE router and make sure you have a route for the 1720 LAN on REMOTE in the direction of the 1720...
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...