This issue is annoying us for years and happened today again after one year of being working. XG 430 with lag and SFOS 19.5.3 XG has several VLAN. On one VLAN a Windows DHCP Server is serving DHCP addresses. On several other VLAN configured also…

I've seen posts in this forum saying that the Interfaces page in the GUI has a "Renew" button, which can be used for the WAN interface to obtain a new IP address via DHCP. Where is this "Renew" button located? I checked the Interfaces page and the…

Has anyone successfully set up netboot.xyz with a Sophos firewall? If so, could you please explain how to configure Option 66? Thanks in advance.

I have Sophos Firewall v20 GA. In Network-->DHCP, the IPv4 lease table is empty, showing no IP leases despite several devices having dynamic IP addresses. BUG: IPv4 IP leases not appearing in the lease table.

The firewall's DHCP No dynamic ip relays from DHCP server. Sometimes the web logging page of the firewall hangs.

Hello evryone. after updating Sophos firewall to SFOS 20.0.0 GA-Build222 the DHCP stop relaing ip adress in all network devisies, i try to desabel./enabled DHCP, reload firewall no result. i was oblige to downgrade to SFOS 19.5.3 MR-3-Build652 and…

Hi All, I am hoping someone can help me. We've just implemented Sophos XG. Randomly we are having devices not being able to get an IP address from the Sophos DHCP I setup. They get a 169.254.x.x address. The weird thing is sometimes if we leave it…

Hello everyone. I would like to share my experience regarding PXE boot with you. I have already solved the problem with thePXE boot on our old XG2300 v19.5 with the help of the forum and Sophos support. Entered the required options in the DHCP server…

Can the DHCP server register a name/address in DNS

The problem from the discussion: https://community.sophos.com/sophos-xg-firewall/f/discussions/74013/dhcp-static-ip-mapping-for-same-client-multiple-networks affects me too . the feature request https://ideas.sophos.com/forums/330219-xg-firewall…

Hello, I found a few threads, that there was no traditional DHCP reservation and you have to use a static MAC Mapping outside the DHCP pool. Did that feature got implemented yet or do you still need to use that way? If not, then is there a nown…

Hi, XGS2300 is our DHCP Server. Currently, DNS settings under Network > DHCP > Default_DHCP_Server are the gateway itself for the Primary, and our ISP for the secondary DNS Servers. Works fine. Our external DNS servers (Network > DNS) are our ISP…

hi, Can anyone tell me what the format is to get the dhcp option to work for unifi please on a sophos XG? I am using option 43 and have tried the ip of the unifi controller. This worked fine on v19.5.2 but since updating to v19.5.3 it now doesnt work…

Hi! Unable to obtain IP address from DHCP created for VLAN interface. The L2 switch is a NETGEAR GS308T and is trunked to the Sophos XG Firewall. I have an access point connected to the GS308T and cannot get an IP address via DHCP on my iPhone or…

We have experienced this issue for the past year. Sophos support has been troubleshooting with no success although the firewall is rebooted immediately after the issue starts. Unfortunately this is a retail environment and customers are waiting and…

Hi all! We manage DHCP and DNS for the end devices via the XG310. Since last week, the Internet connection of the clients is sporadically interrupted. The end devices are correctly assigned IP addresses and DNS by the XG. Neither nslookup or ping…

Why does the DHCP Server not show how many leases are used up in a DHCP Pool. There is also no notification if your DHCP Pool is exhausted either. Would be very useful to know if you were getting close to running out. As far as I can see, there is no…

When you look at your DHCP Lease... why is there no option to: a) show more than 20 lines on the page b) export to excel Instead it shows you the leases one page at a time. Not very convenient.

Hi, I was investigating problem in RE: Sophos XGS 107 firewall - do not relay IPv6 DHCP to LAN now I analyzed network traffic and have some insights. I see ICMPv6 packets with Router Advertisement (134) with Prefix information coming into my LAN from…

Hello, I have XGS 107 running in my setup. WAN is external network not managed by me. It looks like devices in the LAN network acquire Global IPv6 addresses instead of Link-Local addresses , which messes up a bit internet in my LAN network. Same setup…

We were doing DHCP via Windows Server but decided to use Sophos XGS. DHCP to assign VLAN to Polycom phones via OPTION 128 String VLAN-A=20; - NOTE the ; (semicolon) MUST be at the end of the string for it to work with Polycom. XGS will not allow me…

Hi, currently we are running dhcp from firewall so some user lease time we need to increase so please help me how to extend lease time. Thanks satya

Hello everyone . I have a problem with the configuration of the PXE/SCCM taking the XG as DHCP . Here is my config - next server: ip address of my TFTP server (SCCM) - Boot file location: SMSBootPM100003\x64\wdsnbp.com I get this error ( TFTP time out…

Good day Members, I trust you are well. We are trying to setup a guest Wi-Fi with Sophos and Unifi. We have it currently working but with the DHCP server on the DC, We would like to move the Guest Wi-Fi DHCP to the Sophos XG. Main issue is device are…

XG210, SFOS 19.5.2 MR-2-Build624 So, I have two VLANs, VLAN 70 - 192.168.70.0/28 and VLAN 100 - 10.0.0.0/24. DHCP server is on VLAN100, I want to relay DHCP requests from VLAN70 to VLAN100 for service. I have a relay set up like so: Name …