I am having an issue that does not look uncommon for 4331's
We have taken over a circuit in an office and this circuit will connect fine to other types of router or modem.
They will pick up the dhcp but perminent assigned IP address with no issue, as they are both different makes of box I assume the ISP is somehow just sending the single dhcp IP down this circuit and not statically assigning it in their DHCP server to a mac address
The only thing the remote tech told me is that they have to set the WAN as VLAN 20.
I have tried both as gig0/0/0 and 0/0/0.10 with dot1q encap
I have just a really basic config on the router right now, just enough to try and bring up the WAN
!
interface GigabitEthernet0/0/0
ip address dhcp
negotiation auto
!
ip route 0.0.0.0 0.0.0.0 dhcp
!
I have also tried with 'access-list 101 permit udp any any eq bootpc' applied to the interface
*Dec 13 11:04:39.676: DHCP: Waiting for 60 seconds on interface GigabitEthernet0/0/0
*Dec 13 11:05:10.247: DHCP: QScan: Purging entry
*Dec 13 11:05:10.247: DHCP: deleting entry 7F7DCD47F840 0.0.0.0 from list
*Dec 13 11:05:10.247: Temp IP addr: 0.0.0.0 for peer on Interface: GigabitEthernet0/0/0
*Dec 13 11:05:10.247: Temp sub net mask: 0.0.0.0
*Dec 13 11:05:10.247: DHCP Lease server: 0.0.0.0, state: 10 Purging
*Dec 13 11:05:10.247: DHCP transaction id: 10
*Dec 13 11:05:10.247: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs
*Dec 13 11:05:10.247: No timer running
*Dec 13 11:05:10.247: Retry count: 0 Client-ID: cisco-00aa.6ea7.3b00-Gi0/0/0
*Dec 13 11:05:10.247: Client-ID hex dump: 636973636F2D303061612E366561372E
*Dec 13 11:05:10.247: 336230302D4769302F302F30
*Dec 13 11:05:39.676: DHCP: Try 15 to acquire address for GigabitEthernet0/0/0
*Dec 13 11:05:39.679: DHCP: No configured hostname - not including Hostname option
*Dec 13 11:05:39.679: DHCP: allocate request
*Dec 13 11:05:39.679: DHCP: new entry. add to queue
*Dec 13 11:05:39.679: DHCP: SDiscover attempt # 1 for entry:
*Dec 13 11:05:39.679: Temp IP addr: 0.0.0.0 for peer on Interface: GigabitEthernet0/0/0
*Dec 13 11:05:39.679: Temp sub net mask: 0.0.0.0
*Dec 13 11:05:39.679: DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Dec 13 11:05:39.679: DHCP transaction id: 11
*Dec 13 11:05:39.679: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs
*Dec 13 11:05:39.679: Next timer fires after: 00:00:04
*Dec 13 11:05:39.679: Retry count: 1 Client-ID: cisco-00aa.6ea7.3b00-Gi0/0/0
*Dec 13 11:05:39.679: Client-ID hex dump: 636973636F2D303061612E366561372E
*Dec 13 11:05:39.679: 336230302D4769302F302F30
*Dec 13 11:05:39.679: DHCP: SDiscover placed class-id option: 636973636F706E70
*Dec 13 11:05:39.680: DHCP: SDiscover: sending 299 byte length DHCP packet
*Dec 13 11:05:39.680: DHCP: SDiscover 299 bytes
*Dec 13 11:05:39.680: B'cast on GigabitEthernet0/0/0 interface from 0.0.0.0
*Dec 13 11:05:43.258: DHCP: SDiscover attempt # 2 for entry:
*Dec 13 11:05:43.258: Temp IP addr: 0.0.0.0 for peer on Interface: GigabitEthernet0/0/0
*Dec 13 11:05:43.258: Temp sub net mask: 0.0.0.0
*Dec 13 11:05:43.258: DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Dec 13 11:05:43.258: DHCP transaction id: 11
*Dec 13 11:05:43.258: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs
*Dec 13 11:05:43.258: Next timer fires after: 00:00:04
*Dec 13 11:05:43.258: Retry count: 2 Client-ID: cisco-00aa.6ea7.3b00-Gi0/0/0
*Dec 13 11:05:43.258: Client-ID hex dump: 636973636F2D303061612E366561372E
*Dec 13 11:05:43.258: 336230302D4769302F302F30
*Dec 13 11:05:43.258: DHCP: SDiscover placed class-id option: 636973636F706E70
*Dec 13 11:05:43.259: DHCP: SDiscover: sending 299 byte length DHCP packet
*Dec 13 11:05:43.259: DHCP: SDiscover 299 bytes
*Dec 13 11:05:43.259: B'cast on GigabitEthernet0/0/0 interface from 0.0.0.0
*Dec 13 11:05:47.262: DHCP: SDiscover attempt # 3 for entry:
*Dec 13 11:05:47.262: Temp IP addr: 0.0.0.0 for peer on Interface: GigabitEthernet0/0/0
*Dec 13 11:05:47.262: Temp sub net mask: 0.0.0.0
*Dec 13 11:05:47.262: DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Dec 13 11:05:47.262: DHCP transaction id: 11
*Dec 13 11:05:47.262: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs
*Dec 13 11:05:47.262: Next timer fires after: 00:00:04
*Dec 13 11:05:47.262: Retry count: 3 Client-ID: cisco-00aa.6ea7.3b00-Gi0/0/0
*Dec 13 11:05:47.262: Client-ID hex dump: 636973636F2D303061612E366561372E
*Dec 13 11:05:47.262: 336230302D4769302F302F30
*Dec 13 11:05:47.263: DHCP: SDiscover placed class-id option: 636973636F706E70
*Dec 13 11:05:47.263: DHCP: SDiscover: sending 299 byte length DHCP packet
*Dec 13 11:05:47.263: DHCP: SDiscover 299 bytes
*Dec 13 11:05:47.263: B'cast on GigabitEthernet0/0/0 interface from 0.0.0.0
*Dec 13 11:05:51.265: DHCP: QScan: Timed out Selecting state%Unknown DHCP problem.. No allocation possible
