From: Koen Zeilstra (koen@koenzeilstra.com)
Date: Thu Apr 12 2007 - 03:28:08 ART
Hi group,
I have two routers R1 and R2 using pppoe. I want to use dhcp to allocate
the R1 ip address (1.1.1.10/24). R2 runs the DHCP pool.
I got it working fine, but after bouncing the interface and probably
changing something else ;-) it stopped working. The problem probably is
that R2 allocates the only free ip address to a incorrect client-id.
.Apr 12 08:09:49.090: DHCPD: assigned IP address 1.1.1.10 to client
6369.7363.6f2d.312e.312e.312e.3135.2d56.6972.7475.616c.2d41.6363.6573.7331.2e31.
.Apr 12 08:10:05.214: DHCPD: DHCPDISCOVER received from client
0063.6973.636f.2d30.3031.372e.3561.3431.2e36.3433.302d.4469.30 on
interface Virtual-Access1.1.
Clearing the dhcp pool and bouncing the dialer interface doesn't help.
Manually setting the client-id to the ethernet interface "ip dhcp address
client-id e/1" doesn't help either.
Any ideas on how to solve this?
Below is the config I am using.
R1
vpdn enable
vpdn-group 1
request-dailin
protocol pppoe
!
int e1/0
no ip address
pppoe enable
pppoe-client dial-pool-number 1
!
int d0
ip address dhcp
ip mtu 1492
encapsulation ppp
dialer pool 1
no peer neighbor-route
!
R2
vpdn enable
vpdn-group 1
accept-dialin
protocol pppoe
virtual-template 1
!
ip dhcp excluded-address 1.1.1.1 1.1.1.9
ip dhcp excluded-address 1.1.1.11 1.1.1.254
!
ip dhcp pool cisco
network 1.1.1.0 255.255.255.0
!
int e1/0
no ip address
pppoe enable
!
int virtual-template1
ip address 1.1.1.15 255.255.255.0
no peer neighbor-route
peer default ip address dhcp-pool CISCO
!
R2#show ip dhcp bind
Bindings from all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type
Hardware address/
User name
1.1.1.10 6369.7363.6f2d.312e. Infinite On-demand
312e.312e.3135.2d56.
6972.7475.616c.2d41.
6363.6573.7331.2e31
R2#
.Apr 12 08:09:49.090: DHCPD: assigned IP address 1.1.1.10 to client
6369.7363.6f2d.312e.312e.312e.3135.2d56.6972.7475.616c.2d41.6363.6573.7331.2e31.
.Apr 12 08:09:57.858: DHCPD: DHCPDISCOVER received from client
0063.6973.636f.2d30.3031.372e.3561.3431.2e36.3433.302d.4469.30 on
interface Virtual-Access1.1.
.Apr 12 08:09:57.858: DHCPD: subnet [1.1.1.1,1.1.1.254] in address pool
test is empty.
R2#
.Apr 12 08:10:01.214: DHCPD: DHCPDISCOVER received from client
0063.6973.636f.2d30.3031.372e.3561.3431.2e36.3433.302d.4469.30 on
interface Virtual-Access1.1.
.Apr 12 08:10:01.214: DHCPD: subnet [1.1.1.1,1.1.1.254] in address pool
test is empty.
R2#show ip dhcp bind
.Apr 12 08:10:05.214: DHCPD: DHCPDISCOVER received from client
0063.6973.636f.2d30.3031.372e.3561.3431.2e36.3433.302d.4469.30 on
interface Virtual-Access1.1.
.Apr 12 08:10:05.214: DHCPD: subnet [1.1.1.1,1.1.1.254] in address pool
test is empty.
thanks for your help,
Koen
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:35 ART