Failover Default Routes
Posted on 2009-07-07
My first post, so go easy on me....
Brief Background info; I have 2 sites:-
-We have seperate internet feeds to both sites.
-Failover of services (Market Data, AD, SQL) Clustering (Exchange, Data etc.)
-The network has been spanned 10.100.0.0/16 given MS2003 clustering requires the same network addressing to work correctly (According to the MS specialist here).
-Production site I am running 2 x c3560G and I have implemented HSRP on particular VLANS
for localised redundancy.
-DR site currently 1 c3560g with required VLANS and routes setup(VPN traffic via Firewall only) - routing and VLANs required here for DR purposes - i.e. if the PROD site gets blown up!
-10mb LES link Site2Site - Required VLANS trunked across (dot1q)
-All works as it should
However, I need to weight the default routes out to the internet; thus in the event that we loose Internet connectivity at PROD, the secondary default route will take over and route traffic via the DR Internet link.
I have tried to set up the following, after some reading on EE and Cisco
0.0.0.0 0.0.0.0 10.100.150.50
0.0.0.0 0.0.0.0 10.100.150.30 50
I 'pulled the plug' on the internet feed at PROD, however the 2nd route never took over.
I tested this further by removing the first default route on the Core and pointed to 10.100.150.30
only...i could browse the inetrnet no problem.
Any advice would be much appreciated guys - and I hope this all makes sense!!