Re: Loopback and VLANS
- From: Mark Lar <marklar_@xxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 01 Nov 2005 00:50:09 +1100
Gary wrote:
What you want to do is route to the loopback interface, so the switch needs to advertise it's loopback address into whatever routing protocol you are using.
M
It is a Cisco 6500/Sup 720E-3BXL and I cannot understand how that would get the Loopback address in the right VLAn. The default VLAn on the network is not 1 as we have changed it to be much higher.
Can you add more details to your idea.
Gary,
The loopback interface (lo0) isn't associated with any particular vlan, it's local to the device itself as an "internal" interface that needs to be routed to (within the device), to reach it.
Set it up with a /32 netmask on each device, allocate them in an ordinal fashion in the same classful network that doesn't overlap with any of your existing network ranges. Each device will need to route the assigned /32 address to the loopback interface, you will need some form of static or dynamic route to do this. A dynamic routing protocol is best as you'll end up going mad adding dozens of /32 static routes throughout your network.
M. .
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