no ip redirects on int vlan

[latintrpt]

Hello,

I had a question about "no ip redirects".

We have an F5 Big IP LTM on the network it has 2 vlan's trunked to it.  Those two interface vlan's have "no ip redirects" on them.  We are having problems pinging devices from the F5 to those particular devices that are on those networks.  Would the "no ip redirects" be causing this issue?

Also if we wanted to remove "no ip redirects" from those interface vlan's, would it cause an outage to those to networks?  We have devices that are in production on those two interface vlan's and we want to be sure it doesn't cause an outage.

I hope this makes sense.

Thank You

-Tito

[Souvik Ghosh]

Hi

,

IP redirect is used by the router to tell the end host that a better route is availabe to reach the destination. To read more about the usage of ip redirect please look at the below link.

http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml#redirects

We usually disable ip redirect as a redirect message involves the CPU and might cause elevated CPU utilization, we recommend to fix the routing instead. enabling or disbaling ip reidrect  should not break the connectivity. In case you have a topology/network as the one explained in the link provided removing "no ip redirect" will cause high cpu utilization. connectivity problem to your F5 needs to be troubleshot separetly.

regards,

souvik

[Florin Barhala]

Hi,

I have one question: in order to "send/receive" these messages how is the routing set up? I mean is this working with static routes, or it's only happening when dynamic routing protocols are involved?

Thanks,

laf.