topic DHCP reservation on R80.20.40 (992002691) in Spark Firewall (SMB)

DHCP reservation on R80.20.40 (992002691)

mcguppy — Thu, 03 Nov 2022 10:23:45 GMT

I have seen this post Solved: DHCP-Reservation missing in SMB appliance - Check Point CheckMates

There I can read, this was a bug in R80.20.30.

I am running R80.20.40 on a Quantum Spark 1800 Appliance but I can not find the option to set DHCP reservation.

Can you tell me, where this feature can be found or if this is still a bug in this version as well?

I also see one can still set it by CLI. Any hints, what the command for this is?

Re: DHCP reservation on R80.20.40 (992002691)

G_W_Albrecht — Thu, 03 Nov 2022 10:59:32 GMT

You have to enable DHCP Server first. Reserved IP Address for Specific MAC: You can configure your network so that IP addresses are assigned only for known hosts. Known hosts are already defined as network objects and a specific MAC address is assigned to the IP. Other hosts' DHCP requests are ignored. To configure: Select the specific LAN name and click Edit or double-click the LAN name. The Edit LAN window opens. In the Configuration tab, click Enabled under DHCPv4 Server. In the DHCPv4 Settings tab, enter the DHCP domain name and click the checkbox for Assign IP addresses for known host only. Click Apply.

https://sc1.checkpoint.com/documents/SMB_R80.20.40/AdminGuides/Locally_Managed/EN/Topics/Configuring-Local-Network.htm?Highlight=DHCPv4%20Server

Re: DHCP reservation on R80.20.40 (992002691)

mcguppy — Thu, 03 Nov 2022 11:32:39 GMT

Thank you very much. This way I found already. But I think this is not what I am looking for. I don't want to have "other hosts DHCP requests are ignored". I want to have all DHCP requests served with dynamic IPs, but just want, one specific host gets always the same IP from the DHCP pool.

In the mean time, I think I found the solution. I have to add a network opject for a single IP, where I can set the options "Exclude from DHCP service" and "Reserve IP address in DHCP service for MAC".

This should do the trick I think.

Re: DHCP reservation on R80.20.40 (992002691)

G_W_Albrecht — Thu, 03 Nov 2022 12:00:58 GMT

Yes, that is what the cited paragraph was all about 8)