M
Mike Testovich
Since we implemented dot1x and all great security features that come with it
on our WIRED network, I started seeing DHCP Warnings Event ID 1003 on all of
my workstations configured for DHCP address assignment.
Below is the text of the warning.
Your computer was not able to renew its address from the network (from the
DHCP Server) for the Network Card with network address 001143AD2813. The
following error occurred:
The operation was canceled by the user. . Your computer will continue to try
and obtain an address on its own from the network address (DHCP) server.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
I tried disabling dhcp snooping on one of the ports, but the warnings didn't
go away from the pc plugged in to that port. What's interesting is that XP
machines log Event ID 1003 only at the start up, windows 2000 systems log
this warning all day long (every 5 - 7 min) Looking at the DHCP log file
located on my DHCP server under C:\WINDOWS\system32\dhcp\DhcpSrvLog-Wed.log
confirms with my findings about XP machines accessing DHCP once a day at
the start up and 2000 systems accessing DHCP all day long. (200 - 250
records per PC)
Below is the list of actions my 2000 and XP systems do. (XP systems do this
once a day, 2000 systems show up in the log 200 times a day )
32 DNS update successful
30 DNS update request to the named DNS server
11 A lease was renewed by a client.
All of my ports are configured the same. Below is the config from one of the
ports.
interface GigabitEthernet0
switchport access vlan 21
switchport mode access
switchport voice vlan 24
switchport port-security maximum 2
switchport port-security
switchport port-security aging time 1
switchport port-security violation restrict
switchport port-security aging type inactivity
ip arp inspection limit rate 50
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
dot1x pae authenticator
dot1x port-control auto
dot1x host-mode multi-host
dot1x reauthentication
dot1x guest-vlan 666
spanning-tree portfast
spanning-tree bpduguard enable
ip dhcp snooping limit rate 20
Does anybody know what may trigger this warning on the workstation with
DOT1x
Implementation?
Thank you.
on our WIRED network, I started seeing DHCP Warnings Event ID 1003 on all of
my workstations configured for DHCP address assignment.
Below is the text of the warning.
Your computer was not able to renew its address from the network (from the
DHCP Server) for the Network Card with network address 001143AD2813. The
following error occurred:
The operation was canceled by the user. . Your computer will continue to try
and obtain an address on its own from the network address (DHCP) server.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
I tried disabling dhcp snooping on one of the ports, but the warnings didn't
go away from the pc plugged in to that port. What's interesting is that XP
machines log Event ID 1003 only at the start up, windows 2000 systems log
this warning all day long (every 5 - 7 min) Looking at the DHCP log file
located on my DHCP server under C:\WINDOWS\system32\dhcp\DhcpSrvLog-Wed.log
confirms with my findings about XP machines accessing DHCP once a day at
the start up and 2000 systems accessing DHCP all day long. (200 - 250
records per PC)
Below is the list of actions my 2000 and XP systems do. (XP systems do this
once a day, 2000 systems show up in the log 200 times a day )
32 DNS update successful
30 DNS update request to the named DNS server
11 A lease was renewed by a client.
All of my ports are configured the same. Below is the config from one of the
ports.
interface GigabitEthernet0
switchport access vlan 21
switchport mode access
switchport voice vlan 24
switchport port-security maximum 2
switchport port-security
switchport port-security aging time 1
switchport port-security violation restrict
switchport port-security aging type inactivity
ip arp inspection limit rate 50
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
dot1x pae authenticator
dot1x port-control auto
dot1x host-mode multi-host
dot1x reauthentication
dot1x guest-vlan 666
spanning-tree portfast
spanning-tree bpduguard enable
ip dhcp snooping limit rate 20
Does anybody know what may trigger this warning on the workstation with
DOT1x
Implementation?
Thank you.