I have a four (4) node HP A5120 IRF stack with multiple VLAN's. Currently I have VLAN 2 setup with interface 192.168.200.254 255.255.255.0. My stack default route is 10.0.0.2 (0.0.0.0 0.0.0.0 10.0.0.2) which is a router outside my stack. My VLAN 1 interface is 10.0.0.1 255.240.0.0. (dont ask about the huge subnet. ;-) )
I am having a SIP trunk installed and we need to also install a border gateway for the SIP. I need to change the default route for all VLAN 2 to point to a the new router that will be hosting my new SIP trunks. Lets say 192.168.200.1. This will be directly connected to the switch.
Can I change my VLAN 2 interface as follows:
192.168.200.254 / 255.255.255.255
and then add a static route of:
192.168.200.0 255.255.255.0 192.168.200.1
I would also need to change my phone DHCP to reflect this assignment, but that should be no problem.
Is this a reasonable assumption?