Yes, I only enable ip helper-address command on the Ethernet port on
router1. But there is a quite strange problem. From DHCP manager( this is on
NT4.0 ) I can see this active IP registration leased by one of the remote
client on LAN1, But on LAN3, I can't ping this active IP. I can ping IP
address of Ethernet port of router1. As well, I defined many options for
this IP scope on DHCP manager, such as domain name, DNS server, WIN server,
note type.
Do you have any idea about this?
Landcai
-----Original Message-----
From: Gary Frye [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 05, 2000 9:43 AM
To: Cai, Land; 'Cisco (E-mail)'
Subject: Re: ask for help on DHCP
Yep, all you need is to configure the Helper address (ip helper-address
[address]) command on Router1, and as long as Router1 has route to LAN3
(whether by static or routing protocol... and Router3 has route back to
LAN1).
See, Router1 will take the DHCP broadcasts and convert them into unicast
packets and send them directed to LAN3. For the "address" argument in the
command you can use the specific IP of the DHCP server or use the broadcast
address for that network (192.168.100.255).
garyf
----- Original Message -----
From: "Cai, Land" <[EMAIL PROTECTED]>
To: "'Cisco (E-mail)'" <[EMAIL PROTECTED]>
Sent: Sunday, June 04, 2000 8:52 PM
Subject: ask for help on DHCP
> Dear gang,
>
> I have the following situation.
>
> Ethernet LAN1----Router1-----------Router2----(TokenRing>
LAN1)-----Router3---------Ethernet LAN3
> |
> |
> |
> |
> |
> |
>
>
>
>
> Let 's say Ethernet LAN1 has the ip segment 192.168.1.*/24,
> Ethernet LAN3 has the IP segment 192.168.100.*/24,
> I want the clients on Ethernet LAN1 can get ip address from
> DHCP server located in Ethernet LAN3 automatically. Can I get it to
> reality? I do only need to configure the IP helper address for Ethernet
> interface on the router1, don't I? Or I need to configure something on
> router1, 2, 3?
>
> Thanks in advance,
> Cai, land
>
>
>
>
>
>
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