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RE: DHCP manual binding posted 05/08/2004
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Are there any other devices that may have already been assigned the ONE dhcp
address?

Did you check the leases on the server to verify this?

Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA, 
NNCDS, NNCSS, CNE, MCSE
 
www.cconlinelabs.com
Your #1 choice for online Cisco rack rentals. 
 

-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Richard Dumoulin
Sent: Saturday, May 08, 2004 7:25 AM
To: ccielab@xxxxxxxxxxxxxx
Subject: DHCP manual binding

Hello group,


I would appreciate any help with the following DHCP issue I am encountering.
I don't know much about DHCP so I am just reading the doc-cd about DHCP
manual binding. The recommended configuration seems straightforward but for
some it does not work:

Here is ithe config from the following link:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr
_c/ipcprt1/1cfdhcp.htm#xtocid16
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fip
r_c/ipcprt1/1cfdhcp.htm#xtocid16> 

R1
!
ip dhcp pool test
   host 1.1.1.2 255.0.0.0
   hardware-address 0002.fd9c.6da0
   default-router 1.1.1.1 
!
interface Ethernet0/0
 ip address 1.1.1.1 255.0.0.0



R2
!
interface Ethernet0/0
 ip address dhcp
end
!

R2#sh int eth 0/0
Ethernet0/0 is up, line protocol is up 
  Hardware is AmdP2, address is 0002.fd9c.6da0 (bia 0002.fd9c.6da0)





I can see the broadcast coming in the dhcp server:


R1#deb ip pa det
IP packet debugging is on (detailed)
R1#
*Mar  1 02:29:21.786: IP: s=0.0.0.0 (Ethernet0/0), d=255.255.255.255, len
604, rcvd 2
*Mar  1 02:29:21.786:     UDP src=68, dst=67
*Mar  1 02:29:24.783: IP: s=0.0.0.0 (Ethernet0/0), d=255.255.255.255, len
604, rcvd 2
*Mar  1 02:29:24.787:     UDP src=68, dst=67
*Mar  1 02:29:27.784: IP: s=0.0.0.0 (Ethernet0/0), d=255.255.255.255, len
604, rcvd 2
*Mar  1 02:29:27.788:     UDP src=68, dst=67


But R2 never gets its IP address:

R2#
*Mar  1 02:31:16.938: DHCP: QScan: Purging entry
*Mar  1 02:31:16.938: DHCP: deleting entry 81A46AD4 0.0.0.0 from list
*Mar  1 02:31:16.938: Temp IP addr: 0.0.0.0  for peer on Interface:
Ethernet0/0
*Mar  1 02:31:16.938: Temp  sub net mask: 0.0.0.0
*Mar  1 02:31:16.938:    DHCP Lease server: 0.0.0.0, state: 8 Purging
*Mar  1 02:31:16.938:    DHCP transaction id: 1C3C
*Mar  1 02:31:16.938:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Mar  1 02:31:16.938:    No timer running
*Mar  1 02:31:16.943:    Retry count: 0   Client-ID:
cisco-0002.fd9c.6da0-Et0/0
*Mar  1 02:31:16.943: DHCP: Try 7 to acquire address for Ethernet0/0
*Mar  1 02:31:16.971: DHCP: allocate request
*Mar  1 02:31:16.971: DHCP: new entry. add to queue
*Mar  1 02:31:16.971: DHCP: SDiscover attempt # 1 for entry:
*Mar  1 02:31:16.971: Temp IP addr: 0.0.0.0  for peer on Interface:
Ethernet0/0
*Mar  1 02:31:16.971: Temp  sub net mask: 0.0.0.0
*Mar  1 02:31:16.971:    DHCP Lease server: 0.0.0.0, state: 1 Selecting
*Mar  1 02:31:16.971:    DHCP transaction id: 1B46
*Mar  1 02:31:16.975:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Mar  1 02:31:16.975:    Next timer fires after: 00:00:02
*Mar  1 02:31:16.975:    Retry count: 1   Client-ID:
cisco-0002.fd9c.6da0-Et0/0
*Mar  1 02:31:16.975: DHCP: SDiscover: sending 294 byte length DHCP packet
*Mar  1 02:31:16.975: DHCP: SDiscover 294 bytes 
*Mar  1 02:31:16.975:             B'cast on Ethernet0/0 interface from
0.0.0.0
*Mar  1 02:31:19.971: DHCP: SDiscover attempt # 2 for entry:
*Mar  1 02:31:19.971: Temp IP addr: 0.0.0.0  for peer on Interface:
Ethernet0/0
*Mar  1 02:31:19.971: Temp  sub net mask: 0.0.0.0
*Mar  1 02:31:19.971:    DHCP Lease server: 0.0.0.0, state: 1 Selecting
*Mar  1 02:31:19.971:    DHCP transaction id: 1B46
*Mar  1 02:31:19.971:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Mar  1 02:31:19.971:    Next timer fires after: 00:00:03
*Mar  1 02:31:19.971:    Retry count: 2   Client-ID:
cisco-0002.fd9c.6da0-Et0/0
*Mar  1 02:31:19.975: DHCP: SDiscover: sending 294 byte length DHCP packet
*Mar  1 02:31:19.975: DHCP: SDiscover 294 bytes 
*Mar  1 02:31:19.975:             B'cast on Ethernet0/0 interface from
0.0.0.0
*Mar  1 02:31:22.972: DHCP: SDiscover attempt # 3 for entry:
*Mar  1 02:31:22.972: Temp IP addr: 0.0.0.0  for peer on Interface:
Ethernet0/0
*Mar  1 02:31:22.972: Temp  sub net mask: 0.0.0.0
*Mar  1 02:31:22.972:    DHCP Lease server: 0.0.0.0, state: 1 Selecting
*Mar  1 02:31:22.972:    DHCP transaction id: 1B46
*Mar  1 02:31:22.972:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Mar  1 02:31:22.972:    Next timer fires after: 00:00:03
*Mar  1 02:31:22.972:    Retry count: 3   Client-ID:
cisco-0002.fd9c.6da0-Et0/0
*Mar  1 02:31:22.976: DHCP: SDiscover: sending 294 byte length DHCP packet
*Mar  1 02:31:22.976: DHCP: SDiscover 294 bytes 
*Mar  1 02:31:22.976:             B'cast on Ethernet0/0 interface from
0.0.0.0
*Mar  1 02:31:25.973: DHCP: QScan: Timed out Selecting state%Unknown DHCP
problem.. No allocation possible
*Mar  1 02:31:37.356: DHCP: Waiting for 35 seconds on interface Ethernet0/0


Thank you 

--Richard

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