ArubaOS and Controllers

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Regular Contributor I
Posts: 163
Registered: ‎04-11-2011

Loopback address in OSPF

I can't seem to redistribute my loopback address via OSPF. Does anyone have any suggestions? I have full adjacency with my router and get routes from it, but it doesn't appear I'm sending my loopback address to the router.
Aruba Employee
Posts: 664
Registered: ‎04-15-2009

Re: Loopback address in OSPF

Matt - the Aruba loopback interface is not like a Cisco loopback. The Aruba implementation takes an IP address from an existing subnet on the controller. As long as that subnet is distributed via OSPF, the loopback will be reachable.
Aruba Employee
Posts: 509
Registered: ‎07-03-2008

Re: Loopback address in OSPF

It's a limitation of Aruba, can't be done directly. However, what you can do is create a vlan on your controller, assign a /30 subnet to it, give one IP address to the vlan and the other to your loopback. Then redistribute your vlan via ospf. It's a hack, but it will work.

vlan 900

int vlan 900
ip address 1.1.1.1 255.255.255.252

int loopback
ip address 1.1.1.2
Regular Contributor I
Posts: 163
Registered: ‎04-11-2011

Re: Loopback address in OSPF

Won't I need a port in that VLAN for it to get distributed? The VLAN was show down otherwise.
Aruba Employee
Posts: 664
Registered: ‎04-15-2009

Re: Loopback address in OSPF

If the VLAN is trunked to another switch or if there is a port in the VLAN that is up/up, the VLAN should be up as well. If no, you can do a "operstate up" in the CLI (under "interface VLAN x") and the VLAN will stay up.
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