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Next hop Priority of HSRP

alan-zhan
Level 1
Level 1

I have a question about HSRP porotocol

I had setup a HSRP for Gateway Redundancy and BO_GW1 is the default active router.

The route goes to OUTSIDE Router is from BO_GW1 in the normal state.

But sometimes the route from outside come back to the internal network isn't the same router.

Like sometimes it come back from BO_GW1 and sometimes BO_GW2.

How can I control the route from outside to inside the same as the route from inside to outside.

Is there any solution?

 

Sorry for my English.

3 Replies 3

Julio Carvajal
VIP Alumni
VIP Alumni

Hello Alan,

 

The thing here is that the Outside Router is not aware of any HSRP cloud being used. In fact that router does not even face the HSRP Cloud.

 

That router connects to 2 different subnets.

 

In this case the router will use it's own routing table to send traffic to the destination and in this case as you are using static routing there will be a draw in the AD and both routes will be installed and used in a load-balancing fashion.

 

How to change it?

 

Well, use routing protocols and withdraw routes when the respectice interface go down or use IP SLA having the BO-GW1 as primary and using BO-GW2 as secondary.

 

Hope this makes sense.

jcarvaja
CCIE R&S 42930, 2-CCNP,JNCIS-SEC
Looking for a quick remote support session? Contact us at inetworks.cr 

 

Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC

Thank you for your reply.

But can I try the IP SLA configuration on the Packet Tracer? 

I am not sure if packet-tracer supports IP SLA. Give it a try :) However, GNS3 definitely would. Also, you can configure a routing protocol (OSPF, EIGRP, BGP) and play around with the metrics/attributes and influence what paths the router chooses to take when returning the traffic.

 

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