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Bug #16304

closed

Did not set DNS server on the LAN clients automatically if Netgate 2100 setup with Serial console only.

Added by Sayed Mohammad Badiezadegan 2 months ago. Updated about 1 month ago.

Status:
Resolved
Priority:
Normal
Category:
DNS Forwarder
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Release Notes:
Default
Affected Plus Version:
Affected Architecture:
SG-2100

Description

I set up a Netgate 2100 (v24.11) from the factory default to a simple NAT router via a Serial console only. (Not GUI)

I found that every client that connects to its LAN ports can not get the DNS server address automatically, and I should set a DNS server address on all clients manually, or , manipulate the /conf/config.xml and insert the DNS server address in the <dnsservers> section.


Files

config.xml (16.1 KB) config.xml Sayed Mohammad Badiezadegan, 07/16/2025 08:04 PM
dhcpd.conf (594 Bytes) dhcpd.conf Sayed Mohammad Badiezadegan, 07/29/2025 11:33 PM
Actions #1

Updated by Reid Linnemann about 2 months ago

  • Assignee set to Reid Linnemann

I'll need to know a little more about the configuration, can you submit a config.xml with any specifics that are private redacted? Also, did you reinstall v24.11 on this 2100 or did you have a 2100 with v24.11 pre-installed and you configured it on the console?

Actions #2

Updated by Sayed Mohammad Badiezadegan about 2 months ago

Reid Linnemann wrote in #note-1:

I'll need to know a little more about the configuration, can you submit a config.xml with any specifics that are private redacted? Also, did you reinstall v24.11 on this 2100 or did you have a 2100 with v24.11 pre-installed and you configured it on the console?

I attached here its config.xml.
I used Netgate 2100 with v24.11 pre-installed, and I configured it on the console.

Actions #3

Updated by Reid Linnemann about 2 months ago

Nothing in that config seems out of place, the dhcpd and resolver conf are the same as any other install. What are the contents of /var/dhcpd/etc/dhcpd.conf?

Actions #4

Updated by Sayed Mohammad Badiezadegan about 2 months ago

Reid Linnemann wrote in #note-3:

Nothing in that config seems out of place, the dhcpd and resolver conf are the same as any other install. What are the contents of /var/dhcpd/etc/dhcpd.conf?

That's because I manually set the DNS on the clients.

Actions #5

Updated by Reid Linnemann about 2 months ago

Sayed Mohammad Badiezadegan wrote in #note-4:

Reid Linnemann wrote in #note-3:

Nothing in that config seems out of place, the dhcpd and resolver conf are the same as any other install. What are the contents of /var/dhcpd/etc/dhcpd.conf?

That's because I manually set the DNS on the clients.

I understand, I'm attempting to identify what (if anything) is unexpected in your configuration. May I see your dhcpd.conf?

Actions #6

Updated by Sayed Mohammad Badiezadegan about 1 month ago

Reid Linnemann wrote in #note-5:

Sayed Mohammad Badiezadegan wrote in #note-4:

Reid Linnemann wrote in #note-3:

Nothing in that config seems out of place, the dhcpd and resolver conf are the same as any other install. What are the contents of /var/dhcpd/etc/dhcpd.conf?

That's because I manually set the DNS on the clients.

I understand, I'm attempting to identify what (if anything) is unexpected in your configuration. May I see your dhcpd.conf?

Sure,
I attached it here,

Actions #7

Updated by Reid Linnemann about 1 month ago

Is this the dhcp configuration as originally generated on first boot? The domain-name-servers option is present as I expect.

Actions #8

Updated by Sayed Mohammad Badiezadegan about 1 month ago

Reid Linnemann wrote in #note-7:

Is this the dhcp configuration as originally generated on first boot? The domain-name-servers option is present as I expect.

Yes, I did not make any changes to DHCP

Actions #9

Updated by Reid Linnemann about 1 month ago

I'm not able to replicate what you've seen, can you describe the setup that you performed on the console?

Actions #10

Updated by Sayed Mohammad Badiezadegan about 1 month ago

  • Status changed from New to Resolved

Reid Linnemann wrote in #note-9:

I'm not able to replicate what you've seen, can you describe the setup that you performed on the console?

I found the solution.

I should factory reset the appliance while the WAN and LAN ports are already connected. So, there is no problem with DNS resolution.

The problem will happen if the WAN/LAN cables are connected after doing the factory reset.

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