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mtawafig wrote:
Hi
Anyone with a pointer on a setup for a failover router using zebra and
keepalived .
Any help is appretiated
This is quite straightforward. You use keepalived to create a virtual
gateway between interfaces on two different routers.
Zebra on router1:
interface eth0
ip address 10.0.0.2/24
Zebra on router2
interface eth0
ip address 10.0.0.3/24
If you're using OSPF then have the following on both routers:
router ospf
network 10.0.0.0/24
Then configure keepalived with something similar to:
vrrp_instance {
state MASTER
interface eth0
garp_master_delay 5
virtual_router_id 1
advert_int 2
priority 150
virtual_ipaddress {
10.0.0.1/24
}
}
On router2, use BACKUP and 100 for state and priority.
The default gateway on any servers on this subnet should be set to 10.0.0.1.
I have yet to find a copy of keepalived that successfully delt with
MASTER-MASTER arbitration though.
Hope that helps,
Nick.
--
Nick Burrett
Network Engineer, Designer Servers Ltd. http://www.dsvr.co.uk
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