• IPv6 on the LAN - DHCPv6 Not working / Default gateway not pinging on IPv6 Only

    wiz0rd
    wiz0rd
    I have created a DHCP IPv6 Server, but nothing is working. (Nothing getting an IPv6 automatically / nothing talking to its DG) Above is a VM on vcenter not pulling anything with DHCPv6 Sophos is a VM. And the above Ubuntu server screenshot is a…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • XG Firewall - How to create static IP addresses

    Thomas Jensen
    Thomas Jensen
    I'm in the proces of setting up a Sophos XG on an Intel platform and step by step overcoming the differences I encounter from other FW products I have used. I mainly have experience with Untangle and Ubiquiti products. The plan was to onboard all of…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Routing on Bridge Pair vs. DHCP Relay

    DavidSain
    DavidSain
    A client has a number of firewalls and 2 AD servers, one on prem and one in Azure. They wish to control IP address assignments in Windows instead of on each firewall. This makes sense as using Central to manage a number of firewalls is slow and somewhat…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Domain name setting for DHCP on a Sophos XGS 136

    John Giovannis
    John Giovannis
    Hi, I have setup a DHCP service for a /24 network on a Sophos XGS 136 device. I've also setup an internal DNS (bind) server that contains 2 zones "abc.net" and "internal.abc-software.net". The IP address of the DNS server has been defined in the primary…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Multiple MAC to one IP

    DCALS
    DCALS
    Hi, Is there any way to map a static IP to multiple MAC addresses? In UTM it was possible just by adding all the MAC addresses to a host object, and whichever MAC was presented to the DHCP server, it would get that IP address. I get that there are…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Sophos XG can't resolve client hostname with DHCP

    Angelone
    Angelone
    Hi all, I'm new with Sophos XG and I apologise if the question is trivial. I've created some VLANs and for each one there is a DHCP server. DHCP servers are configured to announce the Interface IP address as the DNS server but I can't resolve client…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Status / IP's available

    Tim Bright
    Tim Bright
    Yesterday we had a problem where a couple of computers were not receiving an IP address from our DHCP server which lives on our XG330. I disabled the pool for a couple seconds and then re-enabled it and those systems were able to get an IP. My assumption…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Sophos XGS 126w connecting wireless ssid dhcp dont work

    Chi Hing Chi Hing
    Chi Hing Chi Hing
    Dear All, I have bouhgt a Sophos XGS 126w, and having an issue on the following, when connecting internal ssid its take very long to obtain dhcp and most of the time its doesnt connect, whereas its has no issue on the public wifi ssid, any help would…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • add alise but cant show in dhcp

    Chaitanya joshi
    Chaitanya joshi
    alise created but is not showing in dhcp server drop down i wants add new ip range
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Clients don't receive an IP address from DHCP on newly created VLAN

    dsurfer
    dsurfer
    Hi! I just created a new VLAN and DHCP server with firewall rule and clients are not able to get an IP address. My goal is to have my guest WIFI network (and if I can get this working, my IoT network) on a separate VLAN. I've restarted my switch, firewall…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Cannot Release DHCP

    Nathaniel Patalod
    Nathaniel Patalod
    Hi All, Good Day! Is anyone here know how to manually delete the DHCP lease on Sophos firewall. IP is not in used but still lease on the DHCP entry. I already set the lease time in 5 minutes but that is not in used still on the DHCP lease entry…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • VLAN clients receives IP from DHCP but can't access internet

    dsurfer
    dsurfer
    Hi! I've created a new VLAN and DHCP server for it on the firewall. The clients on the VLAN can successfully get an IP address from the DHCP server but cannot resolve websites / or have internet access. Any tips? See below DHCP server config & firewall…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Disable BOOTP Protocol

    Tecnologias Imaginadas
    Tecnologias Imaginadas
    Hi. Since Firewall support BOOTP/DHCP simultaneos It's possible to disable BOOTP offers?
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Server Not handing out Leases

    Shane Serrao
    Shane Serrao
    Hi all, I am new with Sophos, literally day 3 for this to run on my network. DHCP Server is behaving very strange. Sometimes it would work flawlessly and other times it would just stop handing out leases. I have to turn off the status of the…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • WAN bridge mode no DHCP update

    Mandeep Baidwan1
    Mandeep Baidwan1
    Hey all, I have a Sophos XG connected to an LTE mc801a router in bridge mode. Every night the mc801a is scheduled to reboot, however Sophos doesn't pick up the new DHCP IP address. If I change the interface to static, and then back to DHCP, it picks…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP lease time

    chrisnyork
    chrisnyork
    Hi, Just want to ask how the dhcp lease time work. Does the leased start time should be the same when the device got disconnected? or will the leased start time will changed when the device got connected again? Because as for monitoring the case…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP issue with fixed IPs roaming from one to another interface

    Eduardo Noubleau
    Eduardo Noubleau
    Hello, I have a Sophos Firewall XG330 (SFOS 19.0.0 GA-Build317), with many REDs distributed in different buildings. Each building has his own DHCP RED interface, but I've fixed some IPs. The problem is when someone with a static IP goes to another building…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP reservations

    Tye Bennett
    Tye Bennett
    I am going from a Windows Server DHCP to our Sophos Firewall. Am I to understand that the Sophos Firewall does not do static IP reservations? Or at least does not do it in the same manner as Windows does? Does the reserved IP have to be outside of…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP request ignored for one device

    jamesharper
    jamesharper
    I've just moved a few devices onto a different VLAN. Previously they were issued DHCP addresses from a Microsoft DHCP server, but on the new VLAN the Sophos XG appliance is issuing DHCP requests. Of the 4 devices I moved, 3 of the devices work fine…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • XG DHCP Options Not Working for PXE

    Hard_Working_LANman
    Hard_Working_LANman
    Hello all, I have been trying to get PXE boot to work with files stored on a local Synology machine, using our Sophos XG as the DHCP server. I have configured DHCP Boot Options, as described in this KB article: https://docs.sophos.com/nsg/sophos-firewall…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Requests from offline RED Interfaces

    LHerzog
    LHerzog
    Hi, I have an eye on our XG DHCP and while dumping DHCP Traffic I found that on 3 currently offline REDs that are configured as Split/Transparent, send out DHCP Requests all the time. They are offline for days. 15:18:55.503884 reds30, OUT: Out 00…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Lease table filter options

    John Nickell
    John Nickell
    I apologize if this is the wrong place to post this. The ideas.sophos.com is showing that it's being retired/has been retired and I don't see an place to suggest feature requests here within easy navigation. Within the DHCP Lease table currently you…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Log of an XGS3100

    Roy Wheatley
    Roy Wheatley
    Hello, I am trying to extract specific info from a DHCP syslog generated from an XGS3100, 1 log per day for 253 IP's for the last 50 days, masses of data. What I am trying to find out is, can the log tell me when a given IP was 'last seen' or would…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Not working auto-renew at DHCP

    Gerald Schuh1
    Gerald Schuh1
    Hi, I'm using an Huawei Modem with LTE on wan1. The Sophos XG receives the IP via DHCP. Everytime when there is an IP renew it fails and the interface (wan) is offline until I login to the firewall and click on save in the interface config menu…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • You must enter a unique MAC address in mapping list error message

    Abdel Razak MOULIOM MOUNTAPBEME
    Abdel Razak MOULIOM MOUNTAPBEME
    Hi, I am facing an unusual situation with my SOPHOS XG 230. I am keeping receiving the message " You must enter a unique MAC address in mapping list" each time I am trying to enter a new device in my Static IP MAC mapping. After a deep audit of…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
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