flip-flop your primary and secondary addresses on the hub router: interface Ethernet0 ip address 192.168.1.1 255.255.255.0 secondary ip address 192.168.13.1 255.255.255.0 ip helper-address 192.168.12.17
This will let the old 192.168.1.x addresses age-out gracefully while assigning new addresses from the 192.168.13.x range. I'm assuming here that your DHCP server is configured to pass-out addresses from 192.168.13.x. You were having the problem because the router "helpers" the DHCP request using its primary address -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of J-B Sent: Friday, February 15, 2002 1:50 PM To: [EMAIL PROTECTED] Subject: Re: Secondary ip address and ip helper-address [7:35533] I have done what you just mentioned(everything works except DHCP), the range that needs to be pass out is the new range which is related to the new ip secondary address. The user in Hub site(current ip layout is 192.168.1.0) should get an ip address for the new layout(192.168.13.0) ""Steven A. Ridder"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > As a test, statically configure a client to be on the 192.168.2.0 network > with correct gateway info, mask, etc. Then 1, try pinging the server and see > if that works, and two, change config to dhcp then. What range is the dhcp > server supposed to be passing out, the secondary addresses range, because it > won't work either. The DHCP server must pass out the primary address range > because that's where the packet is coming from. > > -- > RFC 1149 Compliant. > > ""J-B"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Well the clients have not ip address, what we are doing is remove all ip > > address from the clients and enable DHCP.... > > ""Steven A. Ridder"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > I bet the clients are on the new secondary networks? Is that true, > > because > > > if so, ip helper only works on the primary interface's address and not > on > > > the clients on the secondary network. It won't pick up the secondary > > > networks broadcasts. > > > > > > -- > > > RFC 1149 Compliant. > > > > > > ""J-B"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Team, > > > > I have the following problem: > > > > > > > > Our network has 10 sites, I am in the process of readdressing current > > > > network. I have setup secondary ip address on every site, At the > present > > > > time I am setting up a wk2000 dhcp/win server in one site. The problem > > is > > > > that I am not able to obtain ip address from the DHCP server via the > > WAN, > > > it > > > > works fine in the site where it is locate. The layout is the > following: > > > > > > > > Hub site > > > > > > > > interface Ethernet0 > > > > ip address 192.168.13.1 255.255.255.0 secondary > > > > ip address 192.168.1.1 255.255.255.0 > > > > ip helper-address 192.168.12.17 > > > > ip directed-broadcast > > > > no cdp enable > > > > > > > > interface Serial0 > > > > no ip address > > > > ip directed-broadcast > > > > encapsulation frame-relay IETF > > > > no ip mroute-cache > > > > frame-relay lmi-type ansi > > > > > > > > interface Serial0.3 point-to-point > > > > description Spoke site > > > > bandwidth 384 > > > > ip unnumbered Ethernet0 > > > > ip helper-address 192.168.12.17 > > > > ip directed-broadcast > > > > frame-relay interface-dlci 26 > > > > > > > > Spoke site > > > > > > > > interface Ethernet0 > > > > ip address 192.168.12.1 255.255.255.0 secondary > > > > ip address 192.168.2.1 255.255.255.0 > > > > > > > > interface Serial0 > > > > no ip address > > > > encapsulation frame-relay IETF > > > > no fair-queue > > > > frame-relay lmi-type ansi > > > > ! > > > > interface Serial0.1 point-to-point > > > > description connection to Hub > > > > ip unnumbered Ethernet0 > > > > bandwidth 384 > > > > frame-relay interface-dlci 16 > > > > ! > > > > > > > > The ip address of the DHCP sever is 192.168.12.17 > > > > > > > > Be aware that I have not problem pinging to the DHCP server from the > Hub > > > > site. > > > > > > > > Team, what I am doing wrong > here.......HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP > > > > > > > > > > > > Thanks (nothing can replace experience........wowwww) > > > > > > > > > > > > JB Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35548&t=35533 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]