Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

  • Route-Based VPN - xfrm disabled

    Hallo Miteinander Ich habe ein Problem mit einer site-to-site VPN Verbindung. Die Ausgangslage war das ich zwei XG135 SFOS 19.5 so verbinde das ich den ganzen Datentransfer über den Hauptsitz führe und dadurch beide LAN Netze (192.168.10.0 und 192.168…

  • dual redundant vpn tunnels from branch office to HQ office

    I spent some time on research here and I wasn't able to find something like How-To, KB artice covering this scenario where we may have Sophos LTE modem on branch office or Teltonika modem attached to port. We do local break out for internet services…

  • Route Site-to-Site VPN over different ISP

    Good day, I've been struggling with this issue here for quite some time. We have a Site-to-Site VPN setup to external company with NATed ranges. Have setup the firewall to fail-over to backup ISP should the primary ISP fail. Trying tested it multiple…

  • IPSec traffic not tunneled

    Hi, there is a IPSec tunnel not tunneling traffic to remote site. Traffic from remote site to my site is sent trough tunnel as expected, but traffic to remote site is being nated and sent trough WAN interface. Remote site has to use my internet…

  • Activate and deactivate IPsec connection via CLI

    Hi, i read this post RE: Activate and deactivate IPsec connection via CLI It's what i need, but into Api documentation i can't see anything about this command, could you send me a documentation on info about this command? Thanks

  • Check Ipsec Vpn Status by Command Cli

    HI, I would need to retrieve the following information from the XG 135 Firewall via script: - VPN status node by node and child by child - restart the VPN if phase2 or phase1 is down Can you help me retrieve this information via commands? Thank you

  • LLMNR disabled - DNS resolution no longer works over VPN

    Hello all, We have deactivated LLMNR via GPO. After that we had the problem that users who work via VPN have more DNS problems. No problems could be found in the internal network. In 90% of the cases, internal resources can no longer be resolved.…

  • AWS Sophos IPSEC Connection _Not connecting

    Hello, help troubleshoot this IPSEC connection. I have two IPSEC connections on My Sophos ( XG210 ) to AWS first is on My Primary IP which has connected successfully even though it's slow. The Second one is on my Secondary IP which is our back…

  • AWS- Sophos Site-to-Site IPSEC Very Slow

    Hello, I have set up a site-to-site tunnel from our device XG210 to AWS, despite having less than 100ms on ping the connection is very slow, kindly advise what the issue could be the issue, since the setup is okay, and tunnels are connected.

  • "IPSEC with a private I

    "Good morning, everyone. My question is the following: I have a modem that performs NAT from the public IP and provides the firewall with a private IP 192.168.1.0/24. Is it possible to establish an IPSEC connection with another firewall using a private…

  • VPN IPsec site-to-site connexion established but no trafic

    I have a VPN IPsec tunnel between my two firewall sophos. I have a connection but no trafic. I made some firewall rules but I have nothing. This is my schema. And there are my rules: Could someone help me ? Thanks

  • Site-to-Site IPSec IKEv2 VPN

    Schönen guten Tag liebe Sophos Gemeinde. Ich würde gerne mal eure Meinung hören, da mich das Thema schon seit einiger Zeit verfolgt. Vielleicht weiß hier jemand, woran es tatsächlich liegt. Der Sophos Support konnte nur feststellen, dass eigentlich alles…

  • DNS request to DNS over Site2Site VPN

    Hello! We are using a Hardware Firewall XGS-2100 to connect to two datacenters running our AD Controller there. The AD is also our DNS Server. This worked fine for a long time. For some reason one of the VPN stopped working and one of the AD Controller…

  • Firewall VPN site-to-site Sophos GX and Sonicwall - dropping connection

    I have a Sophos model SFV1C4 with SFOS 19.5.2 MR-2-Build624 After the last firmware my site-to-site connections is timing out. It is Sonicwall that initiate the connections. I am using IKEv2 and after a while I get an error: ID 983 VPN IKEv2 Received…

  • Dead Peer Detection - Design Flaw and workaround

    Dead Peer Detection has a hidden design flaw. Dead Peer Detection is a feature designed to retry\re-establish a tunnel when a tunnel drops. You can set 3 settings in this feature for 1)how long to wait before a retry, 2)how long to wait for a response…

  • Sophos XG fail with issue "IPsec connection could not be established" with Tunnel interface AWS.

    Dear Support; I am using sophos xg firewall hardware device. I do IPSec configuration with AWS according to their configuration file. And follow Sophos Firewall: AWS VPN Gateway IPSEC Connection I received the notice "IPsec connection could not be…

  • V19.5.3 and HA-Cluster - VPN Fails "invalid SPI" after upgrading

    Hi, i upgraded our XGS2100 from 19.5.2 to 19.5.3 We had a solid VPN Connection to a customer, after upgrading the Connection fails from time to time and VPN Log shows. 2023-08-28 10:11:14 IPSec Deny Received IKE message with invalid SPI (19CBD566…

  • Site-to-site VPN - Why can't you view your settings when you have a failover group

    Why can't you view your site-to-site settings when you have a failover group active. Whenever I'm working with a SOPHOS engineer on an issue, the first thing they want to do is view the VPN settings, but they can't without taking the VPN tunnel offline…

  • IPSEC VPN traffic not passing passing through to DST IP

    Hey All, , So i had something interesting that got fixed today. On the old XG V17-19 when you create a IPSEC VPN, you didnt need to add a no NAT rule (I could be mistaken if some one can confirm this) But on the XGS, I had setup all the VPNs…

  • Ipsec site to site connection

    im having the problem with ipsec to a client with cisco firewall. The firewall cannot connect to the remote site but the policies and the satting are the same. This is how my setup is Local Public ip : 154.120.225.2 Local ID : set as the Public ip…

  • Need Help with Client IPSec VPN (Connect) in to Site2Site VPN IPSec Tunnel (Policy Based)

    Dear Community, my name is david lorenz and I have a problem at one of our customers. At first I will describe my network situation. They have a HQ and a BO. The HQ has the network: 192.168.2.0/24 (Sophos XG210 with 192.168.2.1) The BO has the…

  • Web Server hinter Site2Site nicht erreichbar

    Hallo zusammen, leider komme ich mit dem Sophos Support hier nicht oder nur schleppend weiter. Folgende Situatiion: Wir haben eine XGS3100 beim Kunden am Main Office in Betrieb genommen. Daran angebunden sind diverse Standorte hinter einem Site2Site…

  • Firewall Drop several initial packet from vpn site to site

    I have configured an IPSec VPN site-to-site connection between two sites, and after that, the ping traffic was going through between the sites. However, about 10 minutes later, when I pinged again to check, there were always a few initial packets that…

  • the received traffic selectors did not match: ::/0 === ::/0

    I currently have multiple tunnels on a SFV4C6MSP running on a cloud VM. I use this router to connect multiple IPsec tunnels to different customers. These tunnels are setup as tunnel interfaces. and they will work fine for weeks, or months before one…

  • Sophos XGS2100 Site-to-Site Tunnel Problem

    Hallo, ich habe mal eine Frage. Also wie haben zwischen 2 Standorten eine Site-to-Site IPSec VPN Tunnel aufgebaut. Das klappte auch nach ein paar Schwierigkeiten recht gut. Allerdings haben wir nun das Problem, das wenn wir von Standort A nach Standort…
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