DHCP Fail

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

DHCP Fail

L1 Bithead

Hello Community,

I have a FW with eth0 configured as DHCP client and it gets IP, no problem. But then I see lots of DHCP Fail system messages between lease renewals:

 

2022-11-28_16-22.png

 

Are these normal?

 

Thanks!

4 REPLIES 4

L4 Transporter

Hello @Alex_S 

 

Hi, I have not had that specific error, but when you configure the DHCP server in the PA, you have the mode enabled or AUTO.

 

When it is in Auto the DHCP polls if there is any other DHCP Server on the network the PA downgrades the DHCP service.

 

Do you have another DHCP server in conflict in your network ?

 

Regards

High Sticker

Thank you for your reply @Metgatz

The interface in question (eth0) is configured as DHCP client. I think the setting you're referring to is for DHCP server config. I do have eth1 configured as DHCP server but the messages point to eth0 not eth1

L4 Transporter

Hello @Alex_S Ok, I understand, thanks for the clarification.

 

Is it mandatory that you use DHCP ? Why don't you reserve an IP from that range, so that it is not assigned to anyone, that DHCP delivers, set the IP on the interface, add the static route with the next hop. Of course if you allow it, if you use DHCP with PPPoE, normally it can be a bit more complex to identify or set an IP and route, however if that DHCP range is from an operator like a 4g Modem/Router or is a range that you control, then you could set the IP, instead of using DHCP.

 

 

Regards

 

High Sticker

@Metgatz This is a shared office environment at a remote location that's only accessible via IPSEC thru the FW. I cannot risk assigning an IP from the range I cannot control (it's controlled by another company). What's interesting is another FW in the same office space but different IP range (different floor) doesn't have this issue. 

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!