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Sophos UTM - Static Mapping IP on DHCP configuration

VuHuynh

Hello there,

 

My UTM releases IP for near 50 laptops. I setup static mapping about 100s IP these laptop (reserve for erthernet & wifi interface on each one).

Currently, I am facing with a annoying error that when having new devices (laptop, smartphone...) connect to the network. Sophos device still releases reserved IP to new devices.

The laptop has conflict IP cannot get IP & access internet. I must delete this laptop in static mapping board for it get new IP to access internet.

Could have any config for avoid this issues? Do I need config lease time option in DHCP setting?

Thanks in advance 

 

Regard,

Vu



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  • +1

    Chào Vu,

    The tool used in the UTM  for DHCP doesn't work like Windows Sever DHCP.  There are no "Reservations" in the UTM.  You must assign statically-mapped IPs outside the range of dynamically-assignable IPs.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • +1

    Chào Vu,

    The tool used in the UTM  for DHCP doesn't work like Windows Sever DHCP.  There are no "Reservations" in the UTM.  You must assign statically-mapped IPs outside the range of dynamically-assignable IPs.

    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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