From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Dec 29 2004 - 15:31:22 GMT-3
Actually, according to the Doc-Cd, ip forword-protocol, is enabled by
default.
When the ip helper command is used only to forward dhcp/bootp messages, you
may want to disabled the
forwarding of other protocols which are also forwarded by default by using
no ip forword prot xxx.
----- Original Message -----
From: "Joe Smith" <j333smith@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, December 29, 2004 1:17 PM
Subject: RE: I E lab 13 - dhcp-server vs ip helper
> If I'm not mistaken don't you also need the "ip forward-protocol" command
in
> combination with the ip helper?
>
> J3
>
> >From: "ccie2be" <ccie2be@nyc.rr.com>
> >Reply-To: "ccie2be" <ccie2be@nyc.rr.com>
> >CC: "Group Study" <ccielab@groupstudy.com>
> >Subject: I E lab 13 - dhcp-server vs ip helper
> >Date: Wed, 29 Dec 2004 12:59:39 -0500
> >
> >Hi guys,
> >
> >R4's bri interface is configured to have it's ip address negotiated.
> >
> >R5 is configured as a dhcp relay & is suppose to get an ip address
> >
> >for R4 from a dhcp server configured on R1.
> >
> >R4 --isdn --- R5 ----- R1 (dhcp server).
> >
> >This works as it's suppose to when R5 has the global command,
> >
> >ip dhcp-server 139.1.15.1, configured.
> >
> >But, if the interface command, ip helper 139.1.15.1, is configured on
> >
> >R5, then R4 doesn't get an ip address.
> >
> >Can anyone explain why that is?
> >
> >I thought, the ip dhcp-server command does the same thing as the ip
helper
> >command except
> >
> >that it's more specific.
> >
> >TIA, Tim
> >
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