From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Dec 29 2004 - 18:17:22 GMT-3
Joe,
On the chance that you were right, I manually added the global, ip
forward-protocol, command
to see if that would make a difference.
Unfortunately, it didn't.
I don't understand this.
Using the dhcp-server command works. Using the ip helper-address doesn't.
I even rebooted the router after making the change just to make sure.
Could it possibly be that I need to change something else in addition to the
above?
(To test the above, I just removed the dhcp-server and added the ip helper
command.)
Tim
----- Original Message -----
From: "Joe Smith" <j333smith@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, December 29, 2004 1:38 PM
Subject: Re: I E lab 13 - dhcp-server vs ip helper
> Then I'm mistaken! Well sort of since you still need it.
>
> J3
>
> >From: "ccie2be" <ccie2be@nyc.rr.com>
> >To: "Joe Smith" <j333smith@hotmail.com>, <ccielab@groupstudy.com>
> >Subject: Re: I E lab 13 - dhcp-server vs ip helper
> >Date: Wed, 29 Dec 2004 13:31:22 -0500
> >
> >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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