05-24-2010 12:45 AM - edited 03-04-2019 08:34 AM
Hi,
Can nyone tell me wht would be the best way to configure backup internet link.No load sharing required.I want the backup link to become active when primary fails.
thanks
Solved! Go to Solution.
05-24-2010 11:48 PM
Thanks a lot Ganesh for your help so far.Few more doubts I have.
Service Provider need to configure anything at their end for this to work?
can we do same failover using LACP?
thanks
No configuration is required at services provider end, all the configuration need to be done at your end router.Can you calrify what exactly the question for failover using LACP?
Ganesh.H
05-24-2010 01:05 AM
Hi,
Can nyone tell me wht would be the best way to configure backup internet link.No load sharing required.I want the backup link to become active when primary fails.
thanks
Hi Vicky,
You can achive with the help of PBR in router,check out the below link for more information on configration
http://pierky.wordpress.com/2009/03/28/dual-wan-connection-on-cisco-with-policy-based-routing-pbr/
http://www.cisco.com/en/US/docs/ios/12_0/qos/configuration/guide/qcpolicy.html
Hope to help !!
Ganesh.H
Remember to rate the helpful post
05-24-2010 01:10 AM
Ganesh,what if I go for floating static routing.this wouldnt solve my problem?
thanx
05-24-2010 01:29 AM
Ganesh,what if I go for floating static routing.this wouldnt solve my problem?
thanx
Yes you can achive the same if you want only failover,Floating routes are secondary routes that are used by a router to reach a destination if the primary route fails. Floating routes are configured just as static routes are; however, an administrative distance (AD) is configured with the static route.
Hope to help !!
Ganesh.H
Remember to rate the helpful post
05-24-2010 01:34 AM
I can configure both as static routes one with higher AD ..right?
05-24-2010 01:39 AM
I can configure both as static routes one with higher AD ..right?
Yes you are right,check out the below link for sample configuration on floating static routes
http://www.cisco.com/en/US/tech/tk801/tk133/technologies_configuration_example09186a0080093d6e.shtml
Hope to help !!
Ganesh.H
Remember to rate the helpful post
05-24-2010 04:01 AM
There is a problem here,
Both the links are Ehternet links.Will Static route can detect failure on ethernet link.?? please advice
thanks
05-24-2010 05:14 AM
There is a problem here,
Both the links are Ehternet links.Will Static route can detect failure on ethernet link.?? please advice
thanks
Configure ip sla track in router for monitoring the link and automatic failover to secondary link
ip sla 1
icmp-echo any ip address
timeout 500
frequency 3
ip sla schedule 1 start-time now life forever
track 1 rtr 1 reachability
Now for the routing, we need to configure a default route and associate it with the tracker
ip route 0.0.0.0 0.0.0.0 1.1.1.1 track 1
Then we need to add our secondary route
ip route 0.0.0.0 0.0.0.0 1.1.1.2 10
Hope to Help !!
Ganesh.H
Remember to rate the helpful post
05-24-2010 07:33 AM
Thanks a lot Ganesh for your help so far.Few more doubts I have.
Service Provider need to configure anything at their end for this to work?
can we do same failover using LACP?
thanks
05-24-2010 11:48 PM
Thanks a lot Ganesh for your help so far.Few more doubts I have.
Service Provider need to configure anything at their end for this to work?
can we do same failover using LACP?
thanks
No configuration is required at services provider end, all the configuration need to be done at your end router.Can you calrify what exactly the question for failover using LACP?
Ganesh.H
05-26-2010 10:36 PM
thanks a lot Ganesh.I am clear now
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: