- Configure R1 and R2 to with IRDP
- R1 should be the primary default gateway and R2 should be the backup default gateway
- R2 should take over when R1 goes down
Relevant configurations are posted below.
First let's see how we can configure R1 and R2. Notice the 'irdp address preference ##' Routers with higher preference will be chosen by the hosts as its default gateway.
Simple enough. Now let's take a look at R3. To emulate a host we need to disable routing on R3 using 'no ip routing' and enable 'ip irdp' on the appropriate interface also we need to enable 'ip gdp irdp'.
|Note that the default gateway is 192.168.1.1 because of the higher preference.|
So that's it .. quick and easy -- irdp configuration is done.
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