Static route from ISP to 2 HSRP routers

[Mirko442]

Hello guys,

i have new question:

This is part of my topology:

So I have configured static routes on ISP for network 10.30.7.0/24 (PC4+JA1+JA2):

ip route 10.30.7.0 255.255.255.0 132.4.4.2
ip route 10.30.7.0 255.255.255.0 132.4.4.3

On JA1 and JA2 I've configured HSRP with JA1 being primary. It works fine, but if I shut interface g1/0 on JA1, my ISP router still shows network 10.30.7.0/24 next hop 132.4.4.2 (JA1) but not 132.4.4.3 (JA2).

What am I missing for ISP to know 10.30.7.0/24 with 132.4.4.3 address if interface g1/0 on JA1 is shut?

[Harold Ritter · Accepted solution]

Hi @Mirko442 ,

This is normal behavior, as the static route does not validate the next hop liveliness by default. There are at least two options you could consider to fix the issue:

1- Use a static route with IP SLA

2- Configure HSRP on interface gi2/0 on Ja1 and JA2 and have only one static route on the ISP router pointing to the HSRP virtual IP address.

Regards,

[MHM Cisco World]

config other HSRP group between two Edge routers and ISP.

[Georg Pauwen]

@MHM Cisco World Interesting. How would the ISP direct traffic towards that second standby IP ? Can you provide the details of your solution?

[MHM Cisco World]

Sure, if you want
it easy as me and @Harold Ritter  suggest 
config HSRP between two edge routes ja1 and ja2 and config static route in ISP toward VIP of this new HSRP 
the static route will be 
ip route <LAN> <LAN mask> <new HSRP group VIP>

here each Ja1 and Ja2 will run two HSRP group 
one toward LAN 
other toward ISP 

it classic friend 

[Mirko442]

Wow don't know how I didn't consider that xD, thanks for the quick help guys!

[MHM Cisco World]

you are so welcome