x440G2 DHCP DNS option

[Thomas_Handber1]

Hi

I'm having a problem with the DHCP on a X440G2.

I have a small site where I normally have used a x250e with out any problem.

But now I have installed a X440G2, and my computers get the gateway as DNS server instead of what I have configured in dhcp-options dns-server primary.

I have tried these 2 firmware
21.1.1.4
22.1.1.5
But have the same problem on them both.

Have anyone else had the same problem?

Thomas

[Johann_Smith]

Dear Thomas, we had similar issues on a x460G2, this is the config that finally worked for us;

configure vlan vlanName dhcp-address-range 10.10.10.2 - 10.10.10.254

configure vlan vlanName dhcp-lease-timer 3600

configure vlan vlanName dhcp-options default-gateway 10.10.10.1

configure vlan vlanName dhcp-options dns-server 8.8.8.8

enable dhcp ports portNumbers vlan vlanName

configure vlan vlanName dhcp-option code 15 string "internal.domain.com"

configure vlan vlanName dhcp-option code 119 string "internal.domain.com internal02.domain.com internal03.domain.com"

# alternative in HEX for code 15

configure vlan vlanName dhcp-option code 15 hex 69:6e:74:65:72:6e:61:6c:2e:64:6f:6d:61:69:6e:2e:63:6f:6d

And yes we did have code 15 in string and in hex before it finally worked

Hope this gives some guidance.

Regards,
Johann

[Thomas_Handber1]

Talked to support and the problem is fixed with image 21.1.3.7
And should also be fixed in 22.2 when that is being released.

[Thomas_Handber1]

Slot-1 Stack.7 # sh dhcp-server VLAN "TX":
DHCP Address Range : 10.21.192.15->10.21.192.25
Netlogin Lease Timer : Not configured (Default = 10 seconds)
DHCP Lease Timer : Not configured (Default = 7200 seconds)
Default Gateway : 10.21.192.4
Primary DNS Server : 10.10.10.135
Ports DHCP Enabled : 1:1-20

===========================================================================
IP MAC State Lease Time Left
===========================================================================
10.21.192.15 2c:41:38:12:2b:e0 Assigned 0001:57:40

[Thomas_Handber1]

Sorry i'm using the 1-5 patch
Primary ver: 21.1.1.4
patch1-5
Secondary ver: 22.1.1.5

I have tried different ports with same result
Physical Address. . . . . . . . . : 2C-41-38-12-2B-E0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.21.192.15(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Lease Obtained. . . . . . . . . . : 20. februar 2017 17:09:09
Lease Expires . . . . . . . . . . : 20. februar 2017 19:09:09
Default Gateway . . . . . . . . . : 10.21.192.4
DHCP Server . . . . . . . . . . . : 10.21.192.4
DNS Servers . . . . . . . . . . . : 10.21.192.4