IP Office Server Edition with MPLS and VPN Alternate Routing

[DBrewsky]

We have a customer who is installing MPLS circuits (for voice only and directly attached to the WAN port) to a majority of their locations that have IPO V2 Rls 9.0.5(972) installed. In the event the MPLS drops, I would like to re-route traffic through the customers router (directly connected to the LAN port with a local network address), and across their VPN tunnel.

I know I can add multiple routes in the IP Office, but how does the METRIC value work to determine which route has priority over the other?

IP Office:
LAN: 172.20.20.200 connected on customer's data network. Gateway: 172.20.20.1
WAN: 192.168.20.200 connected on the MPLS link. Gateway: 192.168.20.1

Routes:
IP Address[tab][tab]Mask[tab][tab][tab][tab]Gateway[tab][tab][tab]Destination[tab][tab][tab]Metric
192.168.30.0[tab]255.255.255.0[tab]192.168.20.1[tab]WAN[tab][tab][tab][tab][tab][tab][tab]0
192.168.30.0[tab]255.255.255.0[tab]172.20.20.1[tab]LAN[tab][tab][tab][tab][tab][tab][tab]5

--DB

 

[amriddle01]

Lowest metric wins, but you really need to use a router for this. The system will only reroute if the gateway itself disappears not just because the circuit connected to it ceases to function, that's if I remember my testing correctly from years ago.......

 

[nnaarrnn]

Yes. This should all be done in a quality router, not the IPO.

 

[DBrewsky]

Ok... I will let our customer know the options and I can test it at a location that is near me.

Summarize: Lowest Metric wins but it won't attempt a different route if that gateway is accessible.

--DB

 

[amriddle01]

IIRC yes

 

[hairlessupportmonkey]

Server edition = Linux.

https://kindlund.wordpress.com/2007/11/19/configuring-multiple-default-routes-in-linux/

worth a hack.

ACSS - SME
General Geek

 

[amriddle01]

He doesn't have server edition though Sean

 

[hairlessupportmonkey]

title of thread

"IP Office Server Edition with MPLS and VPN Alternate Routing"

ACSS - SME
General Geek

 

[amriddle01]

Indeed, but the devices he's configuring are 500s if I understand correctly, maybe not

 

[mattKnight]

Link loss forwarding might help.

It isn't an easy thing to dynamically adjust routing if the only thing you have is a static route.

You might do better using RIP to advertise your routing up from the routers to the IP office, but again RIP is pretty basic as a routing protocol.



Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.