DHCP not working on second interface

sam_maher

This is what i got from PFSense

![Screenshot (2).png](/public/imported_attachments/1/Screenshot (2).png)
![Screenshot (2).png_thumb](/public/imported_attachments/1/Screenshot (2).png_thumb)

Derelict

That looks like the interface on the client.

On your router do a Diagnostics > Packet Capture on OPT2 and try to get a DHCP lease again.

sam_maher

That was the packet capture from PFSense, Ive imported it into wireshark

Sam

Derelict

Stop and restart the DHCP service or reboot I guess.

sam_maher

Have tried that, No luck :(

Derelict

Anything in the advanced config of the DHCP server?

KOM

… or the general System log?

sam_maher

No there is nothing in the advanced config and here is what i have found in the log:

Oct 8 09:16:01 php-fpm[33740]: /rc.newwanip: The command '/usr/local/sbin/dhcpd -user dhcpd -group _dhcp -chroot /var/dhcpd -cf /etc/dhcpd.conf -pf /var/run/dhcpd.pid igb1 igb0' returned exit code '1', the output was 'Internet Systems Consortium DHCP Server 4.2.8 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Wrote 99 leases to leases file. Listening on BPF/igb0/a0:36:9f:22:4a:48/192.168.26.0/24 Sending on BPF/igb0/a0:36:9f:22:4a:48/192.168.26.0/24 Listening on BPF/igb1/a0:36:9f:22:4a:49/192.168.0.0/24 Sending on BPF/igb1/a0:36:9f:22:4a:49/192.168.0.0/24 Can't bind to dhcp address: Address already in use Please make sure there is no other dhcp server running and that there's no entry for dhcp or bootp in /etc/inetd.conf. Also make sure you are not running HP JetAdmin software, which includes a bootp server. If you did not get this software from ftp.isc.org, please get the latest from ftp.isc.org and install that befor

johnpoz

Well seems you got something listening on that interface and you can not bind to it..

Listening on BPF/igb1/a0:36:9f:22:4a:49/192.168.0.0/24
Sending on BPF/igb1/a0:36:9f:22:4a:49/192.168.0.0/24 Can't bind to dhcp address: Address already in use

sam_maher

Thats what i thought, Im trying to bind to "igb0". "igb1" is the current LAN which works fine.

I have tried restarting DHCP and changing the IP range with no luck.

Derelict

DHCP Relay somehow enabled on that interface?

See if you somehow you got past the GUI logic. Disable all your DHCP servers and see if DHCP Relay is enabled? Just a guess.

sam_maher

Just checked and the dhcp relay was not enabled.

cmb

Check the output of 'sockstat -4', it'll show you which process is bound to that port already.