Due to a migration project I need to be able to migrate servers one by one from one of our offices to a new datacentre.
I've choosen L2TP in order to do this as it's supported on the equipment we have and doesn't require any special cooperation with our WAN provider. It's going well with one problem.
The problem we have is that we need to migrate multiple VLANs for which we do not have enough ports on the router to be able to do on a per-port basis, therefore we're using VLAN based sessions and trunking to the switch.When the VLANs are the same this works fine but there a couple of where the VLAN in the datacentre is different to that on the LAN and we were hoping of being able to do VLAN Rewrite as the traffic enters/leaves the tunnel.
I've used the document below as reference but it doesn't give a clear example of how do the VLAN rewrite:
The local interface is supposed to be a loopback. Probably not the problem but better to follow the instructions. I'm guessing that the interfaces shown are not on a supported port adapter. Other than that it looks ok, what does a show l2tun tunnel all show?
[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...