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Where do I configure DHCP exclusions?

nnhood
I setup DHCP on the internal interface, but I want to setup some exclusions for things on the network that I know are out there and within in the DHCP range.

These were setup before on a Windows DHCP server so I knew right where to look, but can't seem to find a DHCP exclusions range option on the SOPHOS.  It's a SG210 model.

Thanks!
Matt


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    Hey, Matt - welcome to the User BB!

    The DHCP server used in the UTM doesn't do it the way Microsoft Server does.  There are no "reservations" as such.  In a /24 LAN, I usually mentally set aside .1-.49 for fixed IPs where the server/device isn't going to do a DCP request for an IP.  I do the same with .50-.99 for Host definitions with static DHCP mappings (same IP always assigned to a specific MAC address).  To achieve these de facto reservations, I limit the range assigned by the DHCP server to .100-.254 or smaller.  Does that help?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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  • 0
    Hey, Matt - welcome to the User BB!

    The DHCP server used in the UTM doesn't do it the way Microsoft Server does.  There are no "reservations" as such.  In a /24 LAN, I usually mentally set aside .1-.49 for fixed IPs where the server/device isn't going to do a DCP request for an IP.  I do the same with .50-.99 for Host definitions with static DHCP mappings (same IP always assigned to a specific MAC address).  To achieve these de facto reservations, I limit the range assigned by the DHCP server to .100-.254 or smaller.  Does that help?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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