ip helper-address command on cisco

[chris.lau]

Hello,

I have the following commands configured on my cisco2821 G0/0 interface:

int g0/0

ip adddress x.x.x.x x.x.x.x

ip helper-address 172.24.1.1

ip helper-address 172.24.1.2

speed 1000

duplex full

no shut

!

Can I know how will this ip helper work? Will it always use the first dhcp server (172.24.1.1) to request for IP address? Then, the second one will only be used when the first one failed? Or, just round robin?

Thank you

[milan.kulik]

Hi,

no, it will forward the packets (DHCP requests, e.g.) to both servers all the time.

HTH,

Milan