topic Re: DHCP Relay in General Topics

DHCP Relay

geminigumisong — Wed, 04 Sep 2024 05:20:19 GMT

PC1 in DMZ Zone cannot receive IP from DHCP Server. I already allowed DHCP Traffic in firewall and also configure DHCP Relay which is ethernet1/4 interface with dhcp server ip 192.168.10.1

NOTE: i have configured vlan: 192.168.10.0/24

Re: DHCP Relay

kiwi — Wed, 04 Sep 2024 11:42:16 GMT

Hi @geminigumisong ,

Hard to say what the problem is currently

Please check pan_dhcpd.log to verify how the firewall is handling the DHCP traffic:

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000CldkCAC

Kind regards,

-Kim.

Re: DHCP Relay

Andrew.Woolman — Mon, 14 Oct 2024 23:49:22 GMT

Are you using a Cisco switch? You need to trust the interface that the firewall is connected to.
We've been battling this for ages and solved it with
<confg-int># ip dhcp snooping trust