07-25-2008 07:06 AM - edited 03-06-2019 12:27 AM
We have a client migrating their workstations to Vista from XP, replacing XP workstations with new workstations running Vista, clena install not upgrade. After several workstations were upgraded to Vista, they are not able to get DHCP IP addresses when connected to a 2948G switch. The port on the switch and the NIC are set to auto for speed and duplex. They were able to use the switch port just fine with XP. The 2948G is running OS ver 8.3.1GLX.
07-25-2008 08:18 AM
Make sure the port has spanning tree portfast turned on . If Vista does not activate the nic until late in the boot process then the dhcp request can timeout due to spanning tree running which takes 40-45 seconds... All user ports should have portfast turned on .
07-25-2008 08:34 AM
The ports on the 2948 have portfast enabled. They used the same switch with the XP workstations without a problem. The client has an old 2924XL switch that is uplink to the 2948G, and the Vista users were able to connect to the network ok after their connection was moved to the 2900XL.
07-25-2008 09:12 AM
Strange . you could try doing a "set port host" command which also shuts off trunking and channeling negotiation just in case Vista is really time sensative. If you manually do a release and renew does it pull an address ? Can you post the config minus the addressing ?
07-25-2008 09:34 AM
The following is a copy of the config.
They are also getting the following message on the switch:
IP-3-UDP_BADCKSUM: UDP bad checksum
The search results on this message do not tell much.
I can try and have them set the port host command and see if that changes anything.
#system web interface version(s)
set password
set enablepass
set prompt 68_2_004>
!
#system
set system name 68_2_004
!
#frame distribution method
set port channel all distribution mac both
!
#ip
set interface sc0
set interface sl0 down
set interface me1 down
!
#spantree
#vlan 1003
set spantree fwddelay 15 1003
set spantree maxage 20 1003
#vlan 1005
set spantree disable 1005
set spantree fwddelay 15 1005
set spantree maxage 20 1005
!
#cgmp
set cgmp enable
!
#syslog
set logging console disable
set logging level cdp 2 default
set logging level udld 2 default
set logging timestamp disable
!
#set boot command
set boot config-register 0x2
set boot system flash bootflash:
set boot system flash bootflash:
!
#module 1 : 0-port Switching Supervisor
!
#module 2 : 50-port 10/100/1000 Ethernet
set port speed 2/1-36,2/38-46,2/48 10
set port speed 2/37 100
set port duplex 2/37 full
set udld enable 2/1-50
set spantree portfast 2/1-48 enable
set spantree portvlancost 2/1 cost 18
set spantree portvlancost 2/2 cost 18
set spantree portvlancost 2/3 cost 18
set spantree portvlancost 2/4 cost 18
set spantree portvlancost 2/5 cost 18
set spantree portvlancost 2/6 cost 18
set spantree portvlancost 2/7 cost 18
set spantree portvlancost 2/8 cost 18
set spantree portvlancost 2/9 cost 18
set spantree portvlancost 2/10 cost 18
set spantree portvlancost 2/11 cost 18
set spantree portvlancost 2/12 cost 18
set spantree portvlancost 2/13 cost 18
set spantree portvlancost 2/14 cost 18
set spantree portvlancost 2/15 cost 18
set spantree portvlancost 2/16 cost 18
set spantree portvlancost 2/17 cost 18
set spantree portvlancost 2/18 cost 18
set spantree portvlancost 2/19 cost 18
set spantree portvlancost 2/20 cost 18
set spantree portvlancost 2/21 cost 18
set spantree portvlancost 2/22 cost 18
set spantree portvlancost 2/23 cost 18
set spantree portvlancost 2/24 cost 18
set spantree portvlancost 2/25 cost 18
set spantree portvlancost 2/26 cost 18
set spantree portvlancost 2/27 cost 18
set spantree portvlancost 2/28 cost 18
set spantree portvlancost 2/29 cost 18
set spantree portvlancost 2/30 cost 18
set spantree portvlancost 2/31 cost 18
set spantree portvlancost 2/32 cost 18
set spantree portvlancost 2/33 cost 18
set spantree portvlancost 2/34 cost 18
set spantree portvlancost 2/35 cost 18
set spantree portvlancost 2/36 cost 18
set spantree portvlancost 2/38 cost 18
set spantree portvlancost 2/39 cost 18
set spantree portvlancost 2/40 cost 18
set spantree portvlancost 2/41 cost 18
set spantree portvlancost 2/42 cost 18
set spantree portvlancost 2/43 cost 18
set spantree portvlancost 2/44 cost 18
set spantree portvlancost 2/45 cost 18
set spantree portvlancost 2/46 cost 18
set spantree portvlancost 2/47 cost 18
set spantree portvlancost 2/48 cost 18
set spantree portvlancost 2/49 cost 18
set spantree portvlancost 2/50 cost 18
end
07-25-2008 10:55 AM
Looks ok, why are all the ports set for 10 meg ??? Are all the nics hardcoded to 10 meg ?
"set port speed 2/1-36,2/38-46,2/48 10 " . Unless there is a reason for having all devices at 10 meg I would try a couple set as auto. This is severely restricting all the users on the switch. Maybe Vista is not handling the 10 meg setting too well .
set port speed x/x auto
set port duplex x/x auto
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