DHCP not working on OPT1

newbieuser1234

Ok thanks. Any help with passing through dhcp and DNs examples. I never for that working after searching the forums I couldn't locate a rule example for that. Do I need to list the source ip as all zeros ?

wallabybob

OK, try this for the rule to allow DHCP:

_Firewal_l -> Rules, OPT1 tab, Protocol=UDP, Source=0.0.0.0, Port=68, Destination=255.255.255.255, Port=67, Gateway=* all other fields default value.

After adding the rule you probably have to reset firewall states; see Diagnostics -> States, click on Reset States tab, read the information and click on the Reset button.

Do you see any DHCP requests from OPT1 reported in the DHCP log? or firewall log?

newbieuser1234

no dice. nothing in the dhcp log or firewall log either. it's weird. the rule didn't give me an ip address. not sure what's up. thanks for the help.

wallabybob

Perhaps the problem is at a lower layer than firewall rules. Please paste the output of pfSense shell command```

/etc/rc.banner ; ifconfig; ps ax | grep dhc

so we can verify your OPT1 interface is in a suitable state and DHCP server is running.

@newbieuser1234:

> no dice. nothing in the dhcp log or firewall log either.

What did you do on a system connected to OPT1 to provoke it to issue DHCP requests?

newbieuser1234

I tried to execute the command from the webconfigurator via the command prompt tab, but it just returned the same input. I will try later today when I get access to the actual box. To enable DHCP for OPT1, I checked the "Enable DHCP server on OPT1 interface" in the DHCP server tab.

Surely there has to be a "how to" on how to enable dhcp and dns for another lan. It's weird that people haven't run into this before. I assume this is a common task when using this product. Thanks for your help.

ptt

Please attach screenshots of the: pfSense Dashboard (the main windows), Interfaces:OPT1, DHCP Server on OPT1

newbieuser1234

wan ip is redacted. thanks.

opt1.PNG_thumb

dash1.PNG_thumb

dash2.PNG_thumb

dhcp1.PNG_thumb

dhcp2.PNG_thumb

wallabybob

Did you notice the OPT1 interface statistics in the screenshots you posted?

If something is really sending DHCP requests to OPT1 then the interface statistics should show non-zero counts for bytes received and packets received.

The OPT1 interface status is UP suggesting it is connected to something that is proving carrier, but no data is arriving!

AhnHEL

OPT1 doesn't appear to have auto-negotiated its speed and duplex either from the looks of his second screenshot. Speed and Duplex appears to be missing from his OPT1 interface page as well.

newbieuser1234

yeah i don't have the advanced option as i do in the lan interface.

newbieuser1234

This still isn't working. Can anyone provide a example rule set for how they have separate interfaces using dhcp and dns from pfsense? I can't imagine this is an unusual request. I am basically at a loss with this one.

wallabybob

@newbieuser1234:

This still isn't working.

What have you done to address the connectivity problem discussed earlier?

@newbieuser1234:

Can anyone provide a example rule set for how they have separate interfaces using dhcp and dns from pfsense?

Meddling with firewall rules won't do any good UNTIL you get data to arrive in pfSense over the interface.

newbieuser1234

maybe it's my nic. i will try a different one. i forgot about that issue. thank you

newbieuser1234

It's working! I installed a new nic in the PCI slot. I was using the onboard MB nic before for opt1. apparently it was crap. Thank you for all your assistance on helping me figure out it was a hardware issue.