Are you sure the released ip address is in the correct
subnet/network for that network segment.
I think the DHCP server should have a way to distinguish
which subnet/network the request comes from and send
a reply with appropriate ip address.
Jim Xie.
At 05:44 AM 06/08/2000 -0500, Cai, Land wrote:
>
>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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