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Can't receive an IP from a newly created VLAN using DHCP

Chris Anthony1 over 2 years ago

Everytime I create a new VLAN, I cannot receive a valid IP.

Here's an example:

Here's the configuration for my newly created DHCP for VLAN 130

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Sophos Router is connected to our Core Switch, and our Core Switch is connected to our Distribution Switch. I have already configured my Core and Distribution Switch. I can also upload a screenshot of their configuration if needed.

The port dedicated for VLAN 130 is giving out 169.254 which means APIPA, therefore the DHCP Service is not working properly.

Can you guys help me?

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Top Replies

PhilippRusch over 2 years ago in reply to Chris Anthony1 +3 verified

Your switch and the Sophos VLAN130 Interface have the same IP address, this won't work. Give the 10.5.130.254 to port 4.130, this should work, then.

0 rfcat_vk over 2 years ago

Hi,

the 169.254 is a self assigned IP address, nothing to do with the DHCP server, basically the address indicates that the device is not connected other VLAN. Please advise which version of XG you are running? Are your switched setup for L2 or L3 VLANs because earlier versions of XG only worked with L3 VLANs.

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v21 EAP

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0 Chris Anthony1 over 2 years ago in reply to rfcat_vk

Are you referring to the firmware? If yes, here it is.
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0 Chris Anthony1 over 2 years ago in reply to rfcat_vk

Our switches are setup for L3 VLANS
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0 rfcat_vk over 2 years ago in reply to Chris Anthony1

Thank you for the details. Do you have the VLANs terminating on the XG or on your core switch?

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v21 EAP

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0 Chris Anthony1 over 2 years ago in reply to rfcat_vk

Here are the VLAN configured on XG

while these are the VLAN conifgured on the Core

Those VLANs are properly working (The other tech created those, but he's not around anymore). but then when I create a new VLAN, (for example, VLAN 130), i do not get a valid IP
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0 rfcat_vk over 2 years ago in reply to Chris Anthony1

Thank you, the port connected to the XG should be tagged and the other ports on the VLAN 130 untagged.

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v21 EAP

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0 Chris Anthony1 over 2 years ago in reply to rfcat_vk

Here it is. But I still don't get a valid IP under VLAN 130
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0 rfcat_vk over 2 years ago in reply to Chris Anthony1

When you review the logviewer system what do you see?
ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v21 EAP

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+1 PhilippRusch over 2 years ago in reply to Chris Anthony1

Your switch and the Sophos VLAN130 Interface have the same IP address, this won't work.

Give the 10.5.130.254 to port 4.130, this should work, then.

Mit freundlichem Gruß, best regards from Germany,

Philipp Rusch

New Vision GmbH, Germany
Sophos Silver-Partner

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0 Chris Anthony1 over 2 years ago in reply to PhilippRusch

Hi. I tried changing the IP for Port4.130 to 10.5.130.254, but I can't still receive a valid IP. However, when I tried to put a valid IP Address statically on my test machine I was able to access the internet as well as our network. Can you help me?
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