• DHCP lost to all devices except one vlan

    Reem Jalal Eddine
    Reem Jalal Eddine
    hi i previously posted a question on how to migrate trunk vlans from one port to another mew port for lag configuration. Once i did the transfer we lost connection with dhcp all clients cannot get ip address but once they get a static ip the communication…
    • 1 day ago
    • Sophos Firewall
    • Discussions
  • Sophos Firewall SF Home DHCP not working on wifi with VLAN.

    Michal B
    Michal B
    I have the latest Sophos Firewall Software Home 20 installed on my mini pc as well as on old XG 135w router and on both devices I experience issue with no DHCP reply for Wifi what using VLAN. - I have tested Unifi and Zyxel AP same issue - I have directly…
    • Answered
    • 21 days ago
    • Sophos Firewall
    • Discussions
  • DHCP reservation

    RobertoR
    RobertoR
    I have a few subnets, and all of them have a dhcp server/pool range for specific range. A few of them have a IP reservation (bind mac to IP address). The error/strange behavior I get is if the MAC address is in list for reservation in any of the dhcp…
    • Answered
    • 30 days ago
    • Sophos Firewall
    • Discussions
  • Sophos XG Bridge. Mode, DHCP for VLAN takes Multiple Tries Before Getting an IP

    romaelz
    romaelz
    Hi. I've been battling this for days and finally decided to post it here and seek help. I've pfSense as the main router and Sophos XG is in bridge mode (for application filtering purposes). There's 1x VLAN involved. The DHCP works fine for the main…
    • Answered
    • 1 month ago
    • Sophos Firewall
    • Discussions
  • SFOS 20.0.1 MR-1-Build342 DHCP not working

    Sebastian_Wi
    Sebastian_Wi
    Hello, I've added a DHCP-Server for an interface on my XG. The interface is an RED-VLAN-Interface and ping from the switch is working. An Accesspoint connected to the switch did not get an IP-Adresse. Today we found out, that we have the same problem…
    • Answered
    • 2 months ago
    • Sophos Firewall
    • Discussions
  • IP Lease problem

    Ramil Racelis
    Ramil Racelis
    I have a problem regarding may rujie AP that connected in sophos firewall XGS2300. I created VLan 172.16.16.16 for employees user(mac binding) and Vlan2 17.15.15.16 for Guest wif(DHCP) from 172.15.15.20-100. My problem was when i tried to connect my android…
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • DHCP requests not routing over IPSEC

    Stuart James
    Stuart James
    DHCP requests not routing over IPSEC This has nothing to do with v21.0. It is possible in v18.0. You just have to run a whole stack of CLI commands because the GUI is inadequate. A post by a Sophos staff member to a closed thread which no-one…
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • Created Vlan/dhcp but no internet

    Sophos User3521
    Sophos User3521
    I have created a new vlan and dhcp on the XGS, configured the vlan on unifi wifi/switches, I am getting ip however I cannot get internet access. I don't want the vlan to access other vlans however I want computers inside the vlan to communicate with…
    • Answered
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • New LAN port not getting ip address from DHCP

    jang430
    jang430
    Hello. I want to use 1 of the excess LAN ports on the firewall to give out ip address of 192.168.88.x to the pc connected to it. Currently, my firewall gives out ip address in the 192.168.1.x range. I first selected the port, assigned it to the LAN…
    • Answered
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • Question regarding Sophos and VMware

    Alain Mirval
    Alain Mirval
    Hello everybody, Hello, I'll explain my case, I have a Sophos XG 106. I have one connected to my LAN pin I virtualized a Windows 11 PC with VMWare Workstation, can I make my virtualized PC benefit from the DHCP that I put on the Lan pin of my Sophos…
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • Deauthenticate an IP address from DHCP leased

    Ehab Ali
    Ehab Ali
    Hey Dears, I have a Sophos firewall version 19, I want to ask if i can deauthenticate an Ip shown in DHCP leased list to force it to obtain new Ip or disconnect it immediately? Thanks
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • IPv6 PD and v20.0.2 MR-2

    rfcat_vk
    rfcat_vk
    Hi folks, a couple of days ago my network was downgraded/upgraded from 1000/50 to 250/100, all very good. The IP4 address is now static assigned by the RSP DHCP servers. After a number attempts for over an hour and logging a fault with the RSP, investigation…
    • Answered
    • 3 months ago
    • Sophos Firewall
    • Discussions
  • DHCP Static IP mapping for same client multiple networks - FW 20.0.1

    Tobias Schubert1
    Tobias Schubert1
    Hello, I refer to RE: DHCP Static IP mapping for same client multiple networks? With the update from SFOS 20.0.0 GA-Build222 to SFOS 20.0.1 MR-1-Build342 the Sophos system dhcp conf-generation-method has been set to old again: console> system…
    • 4 months ago
    • Sophos Firewall
    • Discussions
  • A phone is receiving ip address of the firewall when it connects to the network

    Anesu Dangarembwa
    Anesu Dangarembwa
    Good day We have an XG 35 ON VERSION 20.0.1 There is a phone that is connecting to the network.. and when it connects the network it is getting 192.168.10.1 which is the ip addresss of the firewall .. Our DHCP is the firewall , and the DHCP pool…
    • Answered
    • 4 months ago
    • Sophos Firewall
    • Discussions
  • two DHCP reservations messing up client gateway and DHCP options

    LHerzog
    LHerzog
    I noticed a strange mixing of DHCP settings when having 2 reservations for one client MAC address. console> system dhcp static-entry-scope show global I have a VLAN on the XGS lets say VLAN10 Net: 10.1.2.0/24 GW: 10.1.2.1 On that VLAN is a XGS DHCP…
    • Answered
    • 5 months ago
    • Sophos Firewall
    • Discussions
  • dhcpd_eve+ ??

    Sofos network
    Sofos network
    Hi all I have performance problems with the xg86w, the cpu sometimes reaches 100% the top command gives the following result: Thanks you.
    • 5 months ago
    • Sophos Firewall
    • Discussions
  • RED60 with VLANs and DHCP Server - DNS Server IP wrong after Firewall Upgrade

    LHerzog
    LHerzog
    I've got a Site connected with RED60 The RED itself uses a single IP Subnet /31 IP Address and has 4 VLAN with /26 Subnets attached. In the Mgmt VLAN are Sophos APX Accesspoints connecting to Central. That setup was running up and fine for years…
    • Answered
    • 5 months ago
    • Sophos Firewall
    • Discussions
  • Multiple NICs on same LAN Subnet

    ml17
    ml17
    I have recently switched to a new ISP who allows me a blistering 3GB connection of which I wish to take some advantage. To do this, I rebuilt a new firewall from scratch with a 1Gb onboard NIC, plus a 2x10Gb NIC. This gives me 3 ports, which are in order…
    • Answered
    • 6 months ago
    • Sophos Firewall
    • Discussions
  • Conflicts between Public Wi-Fi IP Address and internal LAN (through VPN)

    cm00001
    cm00001
    Hello, Today I found a case that I've intermittently found in the past, but I decide to bring it up in the forum and try to find a permanent solution. I connected to a public WiFi network with an iPad. The network provided the following through…
    • 7 months ago
    • Sophos Firewall
    • Discussions
  • IPv6 - Two addresses being issued by XG Firewall DHCPv6 server?

    Casual_User
    Casual_User
    I've been looking at a strange issue on my devices regarding IPv6 addressing (at least an issue I think is strange). I am not using SLAAC. I have a Sophos XG acting as a DHCPv6 server issuing a private IPv6 prefix, let's call it AAAA:AAAA:AAAA:AAAA:.…
    • Answered
    • 8 months ago
    • Sophos Firewall
    • Discussions
  • DNS Server in DHCP options keeps changing to Sophos IP

    Rog163
    Rog163
    Hi All... Customer has XG135 (SFOS 19.5.3 MR-3-Build652), Sophos is the main DHCP server for the network, for the last few months we have been battling with a strange issue. Sophos LAN IP is 172.16.0.10 Internal Microsoft DNS server 172.16.0.1.…
    • Answered
    • 8 months ago
    • Sophos Firewall
    • Discussions
  • SG Firewall SFOS next maintenance release schedule to fix DHCP next server options

    Rick Dunn
    Rick Dunn
    We have been asking for the DHCP option for TFTP boot options to be fixed and the reply was It is planned to be fixed in the upcoming v20.0.1 MR-1 Can you please post the schedule for the net coming maintenance to be ready for release?
    • Answered
    • 8 months ago
    • Sophos Firewall
    • Discussions
  • DHCP Client Options for WAN interface (FTTH)

    JeanP
    JeanP
    Hi, There has been several discussions / requests on the forum to have the possibility to configure DHCP client options on the WAN interface as their ISPs'DHCP servers require these options set to provide a lease. (from what I found, ref here or here…
    • 9 months ago
    • Sophos Firewall
    • Discussions
  • DHCP addresses used/available

    TimAlbertson
    TimAlbertson
    Has Sophos figured out a way for firewall admins to see a numerical count of active DHCP leases? OR are we still relegated to paging through and counting the leases?
    • 9 months ago
    • Sophos Firewall
    • Discussions
  • DHCP requests not routing over IPSEC

    Stuart James
    Stuart James
    I have a DHCP server running at head office on 192.168.100.21 which is a Windows Server that has a Sophos as it's gateway The branch office has a Sophos There is an IPSEC tunnel between the two Sophos units The branch office has a DHCP relay pointing…
    • Answered
    • 9 months ago
    • Sophos Firewall
    • Discussions
  • View related content throughout Sophos Firewall
  • More
  • Cancel
>