Replies to request coming over a relay goes to relay's internal IP, not to original request's source IP

Simon Hobson dhcp1 at
Sun Oct 7 08:49:25 UTC 2012

Oguz Yilmaz wrote:
>I understand what you mean. According to basic networking this does
>not seem meaningful for me. DHCPD does not reply to the asking relay
> > BOOTP/DHCP, Request from
>00:1e:68:06:eb:37, length: 300, hops:1,
>	Gateway IP:
>	Client Ethernet Address: 00:1e:68:06:eb:37 [|bootp]
> > BOOTP/DHCP, Reply, length: 300, hops:1
>	Your IP:
>	Gateway IP:
>	Client Ethernet Address: 00:1e:68:06:eb:37 [|bootp]
>However, if you say this is how it works, I have nothing to say but thank you.

Yes, this is how it works.

>According to your comments a client for example can
>directly try to talk with So we should always have right
>path to in routing table of dhcpd server.

Yes, there must be correct routing in place for client and server to 
be able to communicate directly.

Simon Hobson

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