Load Balance in router ethernet interfaces

Unanswered Question
Jun 1st, 2007
User Badges:

Hi guys,

I have a cisco 2800 with 2 ethernets.

How can i configure same ip on both, plug one in my first switch and second ethernet in second switch and both do a load balance and fail over ?



  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Anand Narayana Fri, 06/01/2007 - 22:42
User Badges:
  • Silver, 250 points or more

implement HSRP that is the best solutions to load balance.

Amit Singh Fri, 06/01/2007 - 22:51
User Badges:
  • Cisco Employee,


You can not implement HSRP on a single router interfaces. Original poster is looking for load-balancing between the same router's ports.

Please see my post below for this :


HTH,Please rate if it does.

-amit singh

fred_m Sat, 06/02/2007 - 05:59
User Badges:


Your tip is not my case.

Let me explain better.

I have two switches cisco and all of my servers have two NIC's. I plug each NIC on differnt switch, but i need do a trunk link between because i have only one inteface to my route.

So i want plug eth0 router interface in switch A and eth1 in switch B and remove this trunk.

Both eth0 and eth1 have same ip address.

If one of switches stop to work my network isn't impacted.



mohammedmahmoud Sat, 06/02/2007 - 06:04
User Badges:
  • Green, 3000 points or more

Hi Fred,

Amit's suggestion is almost your only chance, as you can't have 2 Ethernet interfaces with the same IP subnet on a single router.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.

fred_m Sat, 06/02/2007 - 06:11
User Badges:


I thinked that exist some way like HSRVP to solve this question.



mohammedmahmoud Sat, 06/02/2007 - 06:15
User Badges:
  • Green, 3000 points or more


No, you can not implement HSRP on a single router, and further more you can't use the same IP (or even 2 IPs from the same IP subnet) on 2 different interfaces on the same router, and thus Amit's suggestion is almost your only choice.


Mohammed Mahmoud.


This Discussion