For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

player_72606's avatar
player_72606
Icon for Nimbostratus rankNimbostratus
Sep 16, 2010

bring down VS using iRule

Hi all,     i need to bring down/offline VS and drop the icmp echo-request and echo-reply when it's pool member are down.     any ideas how to?  
application delivery
dev
devops
iRules
George_Watkins_'s avatar
George_Watkins_
Historic F5 Account
Sep 17, 2010
Hi player,

 

 

I think I may have answered this question in another forum, but I'll give it another go. As long as a virtual server is configured, the LTM will continue to answer echo-requests regardless of the state of the assigned pool. The only way (that I know of) to stop all traffic destined for a virtual address is to use the 'b virtual address arp disable' command. For instance, if you wanted to disable all traffic for virtual address 10.0.0.1 you'd issue the command: b virtual address 10.0.0.1 arp disable. Then enable it again whenever it is needed.

 

 

A tangential use case, but I've use this for migrating virtuals between physical boxes.

 

 

-George