I am trying to set up a 1721 running 12.2(4) with a T1 WIC and an ethernet WIC. The T1 is running over a leased line with PPP encapsulation. The ethernet card will be connected to Cable modem. I need to set up NAT as well. I want to be able to use the T1 for everything until it goes down, then shift all traffic to the ethernet/cable modem. This is for highly available internet access only, no services being hosted inside private network. If you could point me in the right direction, I would be most appreciative.
[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...