That's kind of why I was asking... I understand the significance of the helper addy. From there, DHCP requests get sent to a single DHCP server, that presumably has multiple scopes configured, one scope per subnet/VLAN. What do you do on the DHCP server to make it so that, when a host a VLAN requests an address, the DHCP server answers with an address from the appropriate scope?
Thanks, Hal > -----Original Message----- > From: Gaz [mailto:[EMAIL PROTECTED]] > Sent: Monday, November 26, 2001 2:16 PM > To: [EMAIL PROTECTED] > Subject: Re: multiple DHCP scopes in a vlan with primary an [7:27264] > > > The original question, sorry can't remember who by, was whether this > configuration could be used for a VLAN which had Primary and > Secondary IP > addresses. The IP helper address only specifies the DHCP server. > > I'm fairly sure this could not work effectively, although > DHCP clients would > be issued with addresses. > My thought was that the IP addresses issued would always be > in the subnet of > the primary address. > > Anybody confirm or deny?? > > Cheers, > > Gaz > > ""Lange, Eric"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > The ip helper-address command is your buddy. The router > can convert a UDP > > broadcast packet into a unicast and route the packet to the > appropriate > > network that the DHCP server resides on. > > > > -Eric > > > > -----Original Message----- > > From: Logan, Harold [mailto:[EMAIL PROTECTED]] > > Sent: Monday, November 26, 2001 11:41 AM > > To: [EMAIL PROTECTED] > > Subject: RE: multiple DHCP scopes in a vlan with primary an > [7:27264] > > > > > > For those of you that have implemented VLANs with DHCP, do > you use one > > DHCP server per VLAN, or is there a way to bind a specific > DHCP scope to > > each VLAN? > > > > Thanks, > > Hal > > > > > > > -----Original Message----- > > > From: Syed Raza [mailto:[EMAIL PROTECTED]] > > > Sent: Monday, November 26, 2001 11:59 AM > > > To: [EMAIL PROTECTED] > > > Subject: Re: multiple DHCP scopes in a vlan with primary > an [7:27264] > > > > > > > > > It is not recommended to have multiple subnet in one VLAN. > > > Basically you are > > > killing the whole concept of isolating the broadcast domain. > > > But you can not > > > argue that it does'nt work. Your DHCP server can assign any > > > ip from its > > > scopes. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=27364&t=27264 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
