I am just starting to read up on VPDN (L2TP) tunnels, I have a question about addressing. I have found on CCO that a typical setup for L2TP has the gateway router (the LNS) set up with a virtual-template interface that has an unnumbered interface (for example ip unnumbered loopback 0 or ip unnumbered ethernet, something like that). Then, in order to provide the client with an address, it often uses something like "peer default ip address pool XXXX), where XXXX is some local pool that has been previously defined. I have further discovered that the unnumbered address of that virtual-template (for example, that ip unnumbered loopback 0) is always within the same subnet as those in the local pool. My question is - is this required? Meaning, do those addresses (the address of the interface that the unnumbered command is referencing and the addresses within the local pool) have to be in the same subnet. I think that it is required, but I want to be sure, and I unfortunately don't have my lab in front of me right now to check it out. CCO always seems to do it this way, but they don't explain if it really is required to do things this way. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2348&t=2348 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
