Dear Sir,
Is there any guideline / document for the DHCP Debug ?
I have problme with C9500 with IP Phone , some IP Phone can not be online after the IP Phone reboot. It is possible they can not obtain the IP from the DHCP Server.
The C9500 acts as Router and DHCP relay, it forward the DHCP reqeust to the Micorsoft AD / DHCP server.
I enabled the "debug ip dhcp server events" and "debug ip dhcp server packet" for troubleshooting. I can see the BOOTREQUEST forwarded to the DHCP server and BOOTREPLY sent back to the IP PHONE. It looks like the DHCP relay is working, but not very sure. . .
Jun 14 02:11:45 HKT: DHCPD: Using 19X.16X.142.2 as src ip in packet
Jun 14 02:11:45 HKT: DHCPD: unicasting BOOTREPLY to client xxxx.yyyy.zzzz (19X.16X.142.108).
Jun 14 02:11:48 HKT: Option 82 not present
Jun 14 02:11:48 HKT: DHCPD: Reload workspace interface Vlan141 tableid 0.
Jun 14 02:11:48 HKT: DHCPD: tableid for 19X.16X.141.2 on Vlan141 is 0
Jun 14 02:11:48 HKT: DHCPD: tableid for 19X.16X.142.2 on Vlan141 is 0
Jun 14 02:11:48 HKT: DHCPD: tableid for 19X.16X.143.2 on Vlan141 is 0
Jun 14 02:11:48 HKT: DHCPD: client's VPN is .
Jun 14 02:11:48 HKT: DHCPD: manufacturer oui received
Jun 14 02:11:48 HKT: DHCPD: SerialNumber received
Jun 14 02:11:48 HKT: DHCPD: Product class received
Jun 14 02:11:48 HKT: DHCPD: No option 124
Jun 14 02:11:48 HKT: DHCPD: Option 125 length received is 40
Jun 14 02:11:48 HKT: DHCPD: Enterprise id 3561 - parsing is skipped
Jun 14 02:11:48 HKT: DHCPD: Option 125 added into the clientinfo.
Jun 14 02:11:48 HKT: Option 82 not present
Jun 14 02:11:48 HKT: Option 82 not present
Jun 14 02:11:48 HKT: DHCPD: Option 125 added into the clientinfo.
Jun 14 02:11:48 HKT: DHCPD: Sending notification of DISCOVER:
Jun 14 02:11:48 HKT: DHCPD: htype 1 chaddr xxxx.yyyy.zzzz
Jun 14 02:11:48 HKT: DHCPD: circuit id 0004008d0903
Jun 14 02:11:48 HKT: DHCPD: Manufacturer OUI 383035656330
Jun 14 02:11:48 HKT: DHCPD: Serial No. 383035656330306264666637
Jun 14 02:11:48 HKT: DHCPD: Product Class 5349502d543231505f4532
Jun 14 02:11:48 HKT: DHCPD: interface = Vlan141
Jun 14 02:11:48 HKT: DHCPD: class id 7965616c696e6b
Jun 14 02:11:48 HKT: DHCPD: FSM state change INVALID
Jun 14 02:11:48 HKT: DHCPD: Workspace state changed from INIT to INVALID
Jun 14 02:11:48 HKT: DHCPD: Looking up binding using address 19X.16X.141.2
Jun 14 02:11:48 HKT: DHCPD: Looking up binding using address 19X.16X.142.2
Jun 14 02:11:48 HKT: DHCPD: Looking up binding using address 19X.16X.143.2
Jun 14 02:11:48 HKT: DHCPD: setting giaddr to 19X.16X.141.2.
Jun 14 02:11:48 HKT: DHCPD: BOOTREQUEST from xxxx.yyyy.zzzz forwarded to 19X.16X.201.164.
Jun 14 02:11:48 HKT: DHCPD: BOOTREQUEST from xxxx.yyyy.zzzz forwarded to 19X.16X.201.165.
Jun 14 02:11:48 HKT: Option 82 not present
Jun 14 02:11:48 HKT: DHCPD: Reload workspace interface Vlan253 tableid 0.
Jun 14 02:11:48 HKT: DHCPD: tableid for 19X.16X.201.161 on Vlan253 is 0
Jun 14 02:11:48 HKT: DHCPD: client's VPN is .
Jun 14 02:11:48 HKT: DHCPD: No option 125
Jun 14 02:11:48 HKT: DHCPD: No option 124
Jun 14 02:11:48 HKT: DHCPD: forwarding BOOTREPLY to client xxxx.yyyy.zzzz.
Jun 14 02:11:48 HKT: DHCPD: Forwarding reply on numbered intf
Jun 14 02:11:48 HKT: DHCPD: Option 125 not present in the msg.
Jun 14 02:11:48 HKT: DHCPD: src nbma addr as zero
Jun 14 02:11:48 HKT: DHCPD: ARP entry exists (19X.16X.142.108, xxxx.yyyy.zzzz).
Jun 14 02:11:48 HKT: DHCPD: egress Interfce Vlan141
Jun 14 02:11:48 HKT: DHCPD: Using 19X.16X.142.2 as src ip in packet
Jun 14 02:11:48 HKT: DHCPD: unicasting BOOTREPLY to client xxxx.yyyy.zzzz (19X.16X.142.XXX).
