If you configure a router with multiple ip helper addresses for DNS (for example). Will the router send a DNS request to all ip helper addresses? Or, will the router try the 1st, wait, then 2nd, ...? Thanks.
Using multiple helper addresses under an interface will allow a UDP broadcast to be sent to each device specified by a "ip helper-address" command. So the router will not send the broadcast to the 1st helper-address then the 2nd but will send it to the first and second at the same time.
HTH,
Dan
Learn, share, save
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
