Sophos XGS is not compatible with VLAN ID 0 (Null VID) frames as defined in 802.1Q

TLDR - IEEE 802.1Q reserves VLAN ID 0 for a special purpose. Sophos XGS firewalls do not implement this special purpose correctly, preventing communication with some ISP Gateway modems. The request for...
Blocking devices from accessing network without vpn

hi, we had an incident where when of our devices had an attempt of access but with failure due to wrong password trials. I an suspecting that this device was on an unknown network outside our organization...
2 addresses from a domain are not delivered

HI, we have our firewall configured as transparent emial proxy. All works well, except the following: We can receive all mails from a domain @example.com except for user1@example.com and user2@exacmple...
Sophos Firewall - Remote access VPN - IPsec - download IPsec VPN profile for iOS fails

Hi folks, I did setup a remote access IPsec profile with a uthentication type digital certificate. The local certificate was created with a CSR by the firewall with help of OpenSSL under Linux and...
XGS2100 with SFOS 20 GA - blocks UDP 500/4500 from WiFI2WAN or from LAN2WAN

Now the XGS2100 HA Cluster (SFOS 20 GA) also suffers from the same problem as the XG125 Rev.3 (SFOS20 MR2) and the XG115w Rev.3 SFOS20 MR2). The firewalls start blocking UDP traffic on port 500/4500...