Firewall blocking DHCP broadcast?

jim82

Dear community,

Everytime a client gets a new DHCP on the network, pfSense firewall blocks a couple of packets.

I'm running DHCP on a Windows AD server and using pfSense as the forwarder, everything works perfect.

Can someone please explain why I see this being blocked? Any way to circumvene the issue?

Please see attachment.

BR Jim

1.png_thumb

doktornotor

Create a rule to allow it.

Nullity

DHCP relay?

jim82

Yes I'm using DHCP relay. And every time a client asks for a DHCP address, the firewall log shows a block. My clients receive an address without problem, but I'm still unsure if I should just allow it.

Thanks
Jim

jahonix

Why not allow it if you need it anyways? Helps making things work stable…

jim82

Thanks for your replies.

I now understand that the broadcasts will hit every single IP in the subnet and of course the gateway of VLAN12 will be hit as well.

I have just allowed the traffic to flow, to get rid of the spamming in my logs.

BR Jim

KOM

I have just allowed the traffic to flow, to get rid of the spamming in my logs.

You could create a rule to block it specifically and then set the rule to not log.