DHCP: Allow static lease of addresses within the dynamic pool

Currently it is not possible in the Sophos XG to store static DHCP leases in the internal DHCP server where the IP addresses are located within the configured DHCP pool. This is with other manufacturers such. B. AVM (Fritz! Box) without problems possible. Thus here is the DHCP for large customers currently partly to use. When will this be a solution.

Aktuell ist es in der Sophos XG nicht möglich Statische DHCP Leases im internen DHCP Server zu hinterlegen, bei denen die IP Adressen sich innerhalb des konfigurierten DHCP Pool befinden. Dies ist bei anderen Herstellern wie z. B. AVM (Fritz!Box) ohne Probleme möglich. Somit ist hier der DHCP für Großkunden aktuell nun teilweise zu gebrauchen. Wann wird es hierzu eine Lösung geben.

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Michael Kaiser shared this idea · October 25, 2019 · Flag idea as inappropriate… · Admin →

8 comments

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Simon commented · July 31, 2020 13:13 · Flag as inappropriate

Being able to set a dynamic IP to static is basic key functionality of just about every enterprise DHCP server. It's often essentially to lock in a current IP of a host. The inability to set a current IP to static is painful. The need for that IP to be outside the dynamic IP scope is just a ridiculous limitation especially if deploying into an existing network. This is the second deployment where I've had to deploy a 3rd party DHCP server to accomodate the requirements of an existing IP subnet. Fix this short sighted insanity please.

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Alexandre commented · June 25, 2020 16:06 · Flag as inappropriate

I abound on this subject. No way from Sophos, must be implemented. Actually, I must use Microsoft DHCP to resolve this gap...

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Anonymous commented · May 05, 2020 04:47 · Flag as inappropriate

Sophos, please, thank you

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Nicholas commented · December 17, 2019 02:14 · Flag as inappropriate

Static IP reservation is important. As many customers have this requirements for a DHCP server.

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Sean commented · July 31, 2018 19:06 · Flag as inappropriate

In some cases it is preferable to set a static DHCP reservation inside the range allocated to dynamic clients.
Adding this ability would also allow fulfillment of this other feature request: https://ideas.sophos.com/forums/330219-xg-firewall/suggestions/11707182-dhcp-static-assignment-from-list-of-leases

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Chris commented · June 30, 2018 22:20 · Flag as inappropriate

See also: Cant reserve IP Address in the DHCP Pool

https://community.sophos.com/products/xg-firewall/f/network-and-routing/99582/cant-reserve-ip-address-in-the-dhcp-pool

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Rob Grafton commented · June 04, 2017 22:48 · Flag as inappropriate

It was pretty bad to manage DHCP on the preceeding Cyberoam devices. Having to make a new dhcp range and not include anything you want to reserve is a pain, especially if you have devices in the middle of your DHCP scope you want to statically assign. The windows DHCP management is not perfect but its simple enough to use and understand, something similar in function would be great.

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Grant commented · April 26, 2017 08:53 · Flag as inappropriate

It would be great if the DHCP configuration could be simplified.

1/ Make static IP from an assigned IP would be great.
2/ It would be nice to have a single DHCP pool with exceptions/exclusions/static assignments within that pool or outside that pool.

References:
https://serverfault.com/questions/768655/how-dhcpd-handles-static-ips-vs-dhcp-reservations
https://linux.die.net/man/5/dhcpd.conf

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