I am having an issue with DHCP. I am using a cisco 1710 (one fastethernet and one ethernet) on my network. I live in an apartment where my ISP provides me a direct ethernet line to them. Everyone in the appartment gets an ethernet line. The ISP runs a DHCP server and supplies everyone at the appartment with their own IP.
Recently, I turned on the dhcp service to provide addresses to my LAN. A couple days later my ISP blocked my connection saying I was giving out IP addresses on their network. From what I can tell, my router is receiving requests but not handing out IPs. I'm not sure if by seeing the traffic if it does any responses at all. From what they[ISP] have told me, the router is seeing the DHCP requests but not giving anyone an IP. However, this is causing other computers on the network to not get an IP at all. All need to figure out what the issue is. The following is my configuration with comments and the debug. Any help would be highly appreciated.
Debug:
The 208.x.x.180 is the DHCP assigned address to my ethernet (WAN) port.
Router#debug ip dhcp server events
Router#debug ip dhcp server packet
*Apr 7 17:10:00.507: DHCPD: DHCPINFORM received from client 0100.0ae4.d408.97 (208.x.x.82).
*Apr 7 17:10:00.507: DHCPD: Finding a relay for client 0100.0ae4.d408.97 on interface Ethernet0.
*Apr 7 17:10:00.507: DHCPD: Seeing if there is an internally specified pool class:
*Apr 7 17:10:00.507: DHCPD: htype 1 chaddr 000a.e4d4.0897
*Apr 7 17:10:00.507: DHCPD: remote id 020a0000d02df1b400000000
*Apr 7 17:10:00.511: DHCPD: circuit id 00000000
*Apr 7 17:10:00.511: DHCPD: there is no pool for 208.xx.xx.180.
*Apr 7 17:10:03.511: DHCPD: DHCPINFORM received from client 0100.0ae4.d408.97 (208.x.x.82).
*Apr 7 17:10:03.511: DHCPD: Finding a relay for client 0100.0ae4.d408.97 on interface Ethernet0.
*Apr 7 17:10:03.511: DHCPD: Seeing if there is an internally specified pool class:
*Apr 7 17:10:03.511: DHCPD: htype 1 chaddr 000a.e4d4.0897
*Apr 7 17:10:03.511: DHCPD: remote id 020a0000d02df1b400000000
*Apr 7 17:10:03.511: DHCPD: circuit id 00000000
*Apr 7 17:10:03.511: DHCPD: there is no pool for 208.xx.xx.180.
*Apr 7 17:10:23.003: DHCPD: checking for expired leases.
*Apr 7 17:11:18.047: DHCPD: DHCPINFORM received from client 0100.0ae4.d408.97 (208.x.x.82).
*Apr 7 17:11:18.047: DHCPD: Finding a relay for client 0100.0ae4.d408.97 on interface Ethernet0.
*Apr 7 17:11:18.047: DHCPD: Seeing if there is an internally specified pool class:
*Apr 7 17:11:18.051: DHCPD: htype 1 chaddr 000a.e4d4.0897
*Apr 7 17:11:18.051: DHCPD: remote id 020a0000d02df1b400000000
*Apr 7 17:11:18.051: DHCPD: circuit id 00000000
*Apr 7 17:11:18.051: DHCPD: there is no pool for 208.xx.x.180.
Configuration:
Router#show run
Building configuration...
Current configuration : 1117 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
no ip dhcp use vrf connected
!
ip dhcp pool internal_DHCP
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 38.9.212.2
!
!
ip cef
ip name-server
!
!
!
!
!
!
!
!
!
!
interface Ethernet0
description =====WAN=====
mac-address
ip address dhcp hostname
ip access-group 101 out
ip nat outside
ip virtual-reassembly
half-duplex
no keepalive
fair-queue
no cdp enable
!
interface FastEthernet0
description =====LAN=====
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly
speed auto
!
ip route 0.0.0.0 0.0.0.0 208.x.x.1
no ip http server
no ip http secure-server
!
ip nat inside source list 1 interface Ethernet0 overload
!
!
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 101 permit ip any any
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
Router#
