Would like to forward DHCP and BOOTP broadcasts (not turn the broadcast into a unicast) to a specific subnet on our WAN. This gives us the flexibility to change our DHCP servers without having to change router configs (in our case anyway). Example: Server resides on subnet 1.1/16, my server address is 188.8.131.52, and I have clients on subnet 1.2/16 making DHCP requests.
Using command ip helper-address 184.108.40.206 works.
Using command ip helper-address 220.127.116.11 does not work. According to some
the broadcasts should be forwarded to subnet 18.104.22.168. Doesn't appear to be.
I haven't done any traces yet. Figured this is an easy question for experts out
In the Nortel world that I'm leaving, I would have configured DHCP relay agents on each interface along the 'way' to the servers and back. Cisco implementation appears to be less cumbersome....so far.
I'm not sure of your reasons for doing this, but I will try to help. If you are looking for redundency for your DHCP, I would suggest splitting your scope between two DHCP servers instead of forwarding broadcasts. If that is not possible try this: "ip helper-address 22.214.171.124". That should be the broadcast address on your subnet. I don't know if that will work or not. If that doesn't work look at : "ip forward protocol ...". If you use two DHCP servers, be sure to have both helper addresses configured. Let me know how you come out with this. It looks like a fun little experiment!!!
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