Solved

Cisco 3560 Layer 3 Switch - mutiple IP routes?

Posted on 2013-06-23
4
533 Views
Last Modified: 2013-07-18
I am able to add the following to my Cisco 3560 Switch:

ip route 0.0.0.0 0.0.0.0 192.168.2.101
ip route 0.0.0.0 0.0.0.0 192.168.2.102 100

This makes me think should connection be lost to x.101 then traffic should be sent to x.102.  This does not happen.

Why?

Thanks.
0
Comment
Question by:adrobnis
  • 2
4 Comments
 
LVL 25

Expert Comment

by:Zephyr ICT
ID: 39269239
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39269368
Your failover approach would only work if each route used a different interface. Even then, the failover would only work if the failure was detectable (interface state changed).

As it is, object tracking (SLA) is your best choice.

Here's another guide: Reliable Static Routing Backup Using Object Tracking
0
 
LVL 1

Author Comment

by:adrobnis
ID: 39270016
Thank you both.  I am looking into this option in more detail.  Here is what I have done so far:

ip sla 1
icmp-echo 4.2.2.2
frequency 5
exit
ip sla schedule 1 life start-time now forever
end

This, in theory, will ping 4.2.2.2 (name server) every 5 seconds (just for testing purposes) and in theory if my primary route does not respond then it should go to the secondary route, right?

The switch is connected to two firewalls which are in turn connected to two separate ISP connections.  Each firewall has its own IP address. If the ISP goes down (not the firewall) then my intention is to allow the switch to send traffic to the alternate.

I pulled the internet connection on my primary but it did not "failover." What do you think I am missing?

Thanks.
0
 
LVL 50

Accepted Solution

by:
Don Johnston earned 300 total points
ID: 39270048
There's a bit more to do. You've identified the object, but not what to do if it's unreachable.

Here's the second part.

http://www.cisco.com/en/US/docs/ios/dial/configuration/guide/dia_rel_stc_rtg_bckup.html#wp1064942
0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Cisco Switch Password ---Urgent 3 49
stacking switches 2 45
lan speed when you have different speeds 5 49
Adding switches as opposed to running cables 4 89
Broadband over Power Lines Broadband over Power Lines is the technology of transmitting computer data through power lines. This method of connectivity allows the user to have access to the internet without having to rely on additional cables, suc…
This article will step through configuring a SonicWALL appliance to utilize an internal DHCP server for Global VPN Client (GVC) hosts.  There are times when using an external (external to the SonicWALL) DHCP server, such as Windows Servers, isn’t pr…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.
I designed this idea while studying technology in the classroom.  This is a semester long project.  Students are asked to take photographs on a specific topic which they find meaningful, it can be a place or situation such as travel or homelessness.…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now