Hello,
I've got a config question on HSRP with a backup Wan Link. This is my
design :
LAN 1
____________________________________________
| |
_____ _____
| R1 | | R2 |
--------- --------
| |
Leased Line ISDN Line
| |
_____ _____
| R3 | | R4 |
--------- --------
| |
____________________________________________
LAN 2
In detail, I want to have the R2-ISDN Line-R4 link backup of the R1-Leased
Line-R3 link.
But reading the HSRP cisco documentation it seems to me that HSRP could
just backup the LAN interface. So in my case R2-eth will backup R1-eth and
R3-eth will backup R4-eth. But How R3 could learn that R1 is down ?
So could someone help me building such config ? (perhaps using some routing
protocol ? or static routing).
Thanks for your help.
Christophe.
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