Failed to acquire an IP address on Vl1; DHCP Server did not respond.

While you may not be using VLAN 1, is looks like there could still be some configurations for VLAN 1. Could you post up the running configuration? We can help look through it for any suggested changes.

cheers

Hi,

Sorry for the delay. Here is the running config.

D BLOCK WL>en

D BLOCK WL#show running-config

!Current Configuration:
!System Description "Dell Networking N2024P, 6.3.1.8, Linux 3.6.5-7dc37651"
!System Software Version 6.3.1.8
!
configure
vlan 100,120-121,170,190
exit
vlan 100
name "Server Space"
exit
vlan 120
name "Wireless"
exit
vlan 121
name "Guest Wireless"
exit
vlan 170
name "Staff Wireless"
exit
vlan 190
name "CCTV"
exit
snmp-server location "D BLOCK"
hostname "D BLOCK"
slot 1/0 8    ! Dell Networking N2024P
sntp server "pool.ntp.org" priority 3
clock timezone 10 minutes 0
stack
member 1 7    ! N2024P
exit
interface vlan 1 1
ip address dhcp
exit
interface vlan 100 2
ip address 192.168.0.228 255.255.255.0
exit
username "admin" password ea1ae95af17c5393cdbaa83ea0450f7a privilege 15 encrypted
!
interface Gi1/0/1
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/2
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/3
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/4
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/5
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/6
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/7
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/8
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/9
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/10
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Gi1/0/22
switchport access vlan 190
exit
!
interface Gi1/0/23
switchport access vlan 190
exit
!
interface Gi1/0/24
switchport access vlan 190
exit
!
interface Te1/0/1
channel-group 11 mode active
switchport mode trunk
switchport trunk native vlan 100
exit
!
interface Te1/0/2
channel-group 11 mode active
exit
!
interface port-channel 11
switchport mode trunk
switchport trunk native vlan 100
exit
snmp-server engineid local 800002a203f8b15639a1ef
eula-consent support-assist reject
eula-consent hiveagent reject
exit

Thanks for posting up the config. I suggest running the following command:

# interface vlan 1
# no ip address dhcp

If it does not accept that, it may just be:

# no ip address

Let us know if that helps.

Thanks for posting up the config. I suggest running the following command: # interface vlan 1 # no ip address dhcp If it does not accept that, it may just be: # no ip address Let us know if that helps.

It still logging the same error

D BLOCK WL>en

D BLOCK WL#configure

D BLOCK WL(config)#interface vlan 1

D BLOCK WL(config-if-vlan1)#no ip address dhcp
                                          ^
Invalid IP address. IP address should be in a.b.c.d format where range for a, b, c, and d is 1-255.

D BLOCK WL(config-if-vlan1)#no ip address

D BLOCK WL(config-if-vlan1)#exit

D BLOCK WL(config)#

Severity          Log Time          Component          Description     
Notice    Nov 15 07:51:31    DHCP_CLI    Failed to acquire an IP address on Vl1; DHCP Server did not respond.

That is interesting that the message is still present. The only other thing I can think of right now is to also clear the IP globally, using the no ip address command. VLAN 1 is also the management VLAN by default, so any global settings would be applied to VLAN 1. If the message still persists, then perhaps schedule a time to reboot the switch.

Where does the DHCP server reside on the network?

I rebooted the switch already but did not help. My DHCP server running on Active Directory server on VLAN100. Is there any command dictates "do not look for DHCP" ?

I just replicated the same command on other N2000s and N3000s and it did not work either!

The only command available is the no ip address command. Issuing this command globally and on the VLAN interface will instruct the switch to remove any ip address settings.

You could also try statically assigning an ip address to VLAN 1 to test behavior.

When you did the upgrade to 6.3.1.8, did you update the boot code as well? When issuing the command # show ver, the CPLD should be at 13.

Thanks very much Daniel.

Timely response - thanks. The stack giving this error was on 6.3.1.11 / CLPD 13 and also ignored the "no ip address" command. The "ip address none" was effective.

PA1AS1(config)#interface vlan 1

PA1AS1(config-if-vlan1)#no ip address dhcp
^
Invalid IP address. IP address should be in a.b.c.d format where range for a, b, c, and d is 1-255.

PA1AS1(config-if-vlan1)#no ip address

PA1AS1(config-if-vlan1)#end

PA1AS1#show run

!Current Configuration:
!System Description "Dell Networking N2048, 6.3.1.11, Linux 3.6.5-7dc37651"
!System Software Version 6.3.1.11
!

...

interface vlan 1 1
ip address dhcp
exit

...

PA1AS1(config)#interface vlan 1

PA1AS1(config-if-vlan1)#ip address none

PA1AS1(config-if-vlan1)#end
PA1AS1#show run

!Current Configuration:
!System Description "Dell Networking N2048, 6.3.1.11, Linux 3.6.5-7dc37651"
!System Software Version 6.3.1.11
!

...

interface vlan 1 1
exit

...

Just one more nail.

Hi,

I am having a dell switch N3048 stacking configuration. On one Switch, if i connect ip phone to one of the port i am getting DHCP failed, if i connect the same phone to immediate port it is fetching the DHCP ip. All the ports are having same configuration.

Any help would be greatful.

Regards,

Naveen