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…

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…

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…

alise created but is not showing in dhcp server drop down i wants add new ip range

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…

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…

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…

Hi. Since Firewall support BOOTP/DHCP simultaneos It's possible to disable BOOTP offers?

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…

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…

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…

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…

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…

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…

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…

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…

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…

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…

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…

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…

Hi all, I have DHCP server configured on Firewall and I would like to collect DHCP syslog messages in order to detect when some IP has been assigned to some host. However, in System services/Log Settings there is no DHCP options but rather some categories…

Hello, I recently set up a XGS 126 sophos box in my office. My 2 HP printers, M604 and M602 will not receive an IP Address. They just have 0.0.0.0 I have a feeling the new Sophos box is to blame, but I have no idea how to fix it so they can get…

Here is the instructions Open Sophos Firewall Select Network Services -> DHCP -> Options -> New DHCP option Input the following details. Code: filename Name: type filename Text: EFI\Boot\bootx64.efi or boot\pxeboot.n12 Scope: Global …

Hi Is there any way to get an overview from the amount of leases from the dhcp scopes. Like scope X, 50 of 100 used or in % ? kind regards

Hello, I would like to change the DHCP name of a DHCP server I have setup in Sophos XG. The GUI does not give me this option and I can't find the CLI commands to do this. Thanks in advance