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Track IP routes on 6509

We have a need to track specifc subnets on our two 6509s, running IOS version 12.2(18)SXF16. Basically, we want to do this:

track 1 192.168.0.0 255.255.255.252 reachability

track 2 192.168.1.0 255.255.255.252 reachability

However, the 6509 IOS only provides the option to track an interface. Is this a feature that's available in later IOS versions?

Is there another way to track these routes? The subnets are used for WAN links at a HQ and DR site and we are doing a specific PBR (sending all http/https traffic) using these subnets. If that WAN link goes down, we want to be able to utilize a backup WAN link to support that traffic.

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Track IP routes on 6509

You can use IP SLA to achieve your goal

ip sla 1

icmp-echo X.X.X.X   ( IP address of ISP-1)

timeout 50    -- Time in msec to complete the IP SLA operation

frequency 3  --- number of pings it will send

ip sla schedule 1 start-time now life forever

track 1 rtr 1 reachability

ip route 0.0.0.0 0.0.0.0 Y.Y.Y.Y track 1

ip route 0.0.0.0 0.0.0.0 Z.Z.Z.Z 100

This will ping x.x.x.x and if it looses 3 pings then it will delete ip route 0.0.0.0 0.0.0.0 Y.Y.Y.Y from routing table and adds the following route ip route 0.0.0.0 0.0.0.0 Z.Z.Z.Z 100

Siddhartha

Siddhartha
New Member

Re: Track IP routes on 6509

Unfortunately, ip sla isn't even an option in our IOS:

SWITCH(config)#ip ?

Global IP configuration subcommands:

[options removed]

  sap                     Global IP Multicast SAP Commands

  scp                     Scp commands

  security                Specify system wide security information

  slb                     Server Load Balancing

  source                  IP source

  source-route            Process packets with source routing header options

  ssh                     Configure ssh options

  sticky-arp              Allow the creation of sticky ARP entries

  subnet-zero             Allow 'subnet zero' subnets

.

This is why I asked the original question (sorry, I forgot to mention that). I would have used ip sla, but since it's not available, I wondered if there was another option. Seems like we're limited with our options.

Thanks!

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