• Sophos XG blocking dhcp client from internet when at remote office.

    johnm_19
    johnm_19
    Hello, We've recently had to change our IP schema and now we're having issues with DHCP client laptop Site has windows server with DNS and DHCP to replicates back to main office Sophos XG has SSL site to site back home office Sophos XG Clients…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Use DHCP Options concerning WDS for PXE Boot

    Prateek Singhal
    Prateek Singhal
    Hello Community Members, Hope all is well on your end. I would like your support concerning PXE boot when the DHCP services are provided by SFOS Firewall. My WDS/PXE server is on a different VLAN and the laptops/desktops are on a different VLAN…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DHCP Pool. Total Leases, Leases in use, Alert when low.

    Steve Klassen
    Steve Klassen
    Hi All, We issue DHCP licenses from our Sophos XGS appliance. Since I specify the pool in the DHCP section in the interface... the XGS should know how many leases are available, and since the XGS appliance hands them out, it should know how many leases…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Traffic being blocked

    Leonardo Avesani
    Leonardo Avesani
    I have a rule that allows DHCP traffic from port 68 UDP to port 67 UDP and in the firewall I see the following in the log: Appliance Access - Denied - Firewall Rule 22 - Rule Name: AllowDHCP - Src IP: 0.0.0.0 - Dst IP: 255.255.255.255 - Src Port 68…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Sophos XG 19.5 WAN DHCP Client Option 61

    TorvaFirmus
    TorvaFirmus
    Hi, I have been searching the forum. This question has come up many times over the years without an answer. Actually, there is one answer marked as correct stating that DHCP clients never send data to the server. This is obviously incorrect. I…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • How to display WAN DHCP retry settings

    rfcat_vk
    rfcat_vk
    Hi folks, looking to find a way of obtaining information similar to this. DHCP server: ANY (255.255.255.255) Leases: 692 Offers: 1 Requests: 693 Acks : 692 Naks: 0 Declines: 0 Releases: 0 Query: 0 Bad: 0 Forcerenews: 0 Failures: 0 VRF: global DNS0…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • remote users connetced by SD-RED 20 do not get ip from windows DHCP

    Babak Pirouznia
    Babak Pirouznia
    Hello we have SG115 UTM in our network and remote location connected to us by SD-RED 20 device. we have internal windows DHCP server for assigning ip to users but remote location users can not get ip from our windows DHCP server and we have to use…
    • over 1 year ago
    • UTM Firewall
    • Management, Networking, Logging and Reporting
  • Access system from LAN by usig DHCP ip address

    Sophos User4602
    Sophos User4602
    Dear Sir, I have biometric device which connects to WIFI and IP is released by DHCP in sophos XG 310 firewall. It does not ping to this IP from LAN network, nether i am able to access this device using this dhcp released IP address from browser.. How…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Sophos Firewall: DHCP over IP Alias

    Erick Jan
    Erick Jan
    Disclaimer : This information is provided as-is for the benefit of the Community. Please contact Sophos Professional Services if you require assistance with your specific environment. Table of Contents Overview Alias IP Step 1:Creating…
    • over 1 year ago
    • Sophos Firewall
    • Recommended Reads
  • L2TP Pool too small / Allow leasing IP addresses from RADIUS

    Ben@Network
    Ben@Network
    Hello Community, we have many L2TP-VPN Users and the /24 IP Scope is too small for all our VPN Users. If I read the documentation right, it is not possible to use a lager pool then /24. For us a /23 Pool will fit. Actually, we use a mix of SSLVPN and…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DHCP leasing issues with Ubiquity UniFi devices

    woter324
    woter324
    Update (31/01/2023) Back to the drawing board. This has broken again. I have checked the settings in the Cloud Key are set as described below and nothing has changed. My device is set to automatic updates and unfortunatly I didn't record the firmware…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Prevent IP Address Assignment via MAC Addr

    busthead
    busthead
    Hello, I found this 12 year old thread, Block certain mac address to get ip from dhcp pool and would like to know if it is now possible to prevent the assignment of IP addresses to specific MAC addresses. Thanks
    • Answered
    • over 1 year ago
    • UTM Firewall
    • General Discussion
  • DHCP Pool Alert

    nfawcett
    nfawcett
    Does anybody have any clever ways to monitor dhcp pools. I have about 8 subnets/pools setup and it would be really helpful to know when a pool runs out of IP's. The log doesn't show that the pool is exhausted, it just doesn't respond to the client's discover…
    • Answered
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DHCP Relay over Routing-Based IPsec in SFOS 19 not working

    Sophos22
    Sophos22
    problem description see here: DHCP Relay over Routing-Based IPsec in SFOS 19 not workin I guess there are no plans to "add this feature" in future? Documentation is missleading: https://docs.sophos.com/nsg/sophos-firewall/19.0/Help/en-us/webhelp…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DHCP Relay from Wireless network to a specified Interface

    Ingo Wenske Admin
    Ingo Wenske Admin
    Hello, I am using the following: - SG125 with latest firmware 9.713-19 - APX320 (Wireless Access point) I use the Eth2 on SG125 that is connected to a device that is supplying a DCHP Server. It is required for a new project. The APX320 is…
    • over 2 years ago
    • UTM Firewall
    • General Discussion
  • Should clientless users be able to be assigned by MAC and not IP? (Looking towards IPv6)

    Wayne Folta
    Wayne Folta
    Would it be possible and would it be a good idea to add the capability for Clientless Users to be designated via MAC address rather than IP address? That is, in the IPv6 world. where a machine can have many concurrent and past (but not yet invalid) IP…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • 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 ap55 with ISP router

    Bertani Luca
    Bertani Luca
    Hello everyone, i need some help to troubleshot my problem. I have a virtual machine with Sophos FW home installed. i wanted to use some AP55 leftover i have at home and configure a couple of wireless networks with some VLANs. The problem i'm facing is…
    • over 2 years ago
    • Sophos Wireless
    • Discussions
  • Red60 DNS settings when used with XG for a red tunnel

    Matthew LaComb
    Matthew LaComb
    Google searching not successful; how do I set up the DHCP server "dns settings" to push from an XG to a remote Red60 (i.e. client laptop needs to see our domain suffix + name servers)
    • 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
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