The problems with asymmetric routing

Happy Saturday to all of you! I made some thoughts about the topic asymmetric routing. When I make network audits to new customers I often see multiple gateways in a single subnet (for example for site2site VPNs). They tell me about some weird problems with some intercommunications between those subnets. To better understand the wrong topology … Read moreThe problems with asymmetric routing

Using a VDSL line with Sophos UTM

In this example I will show you how to use VDSL on a Sophos UTM from Deutsche Telekom. It works with home and business lines.  To use PPPoE for VDSL, the network traffic needs to be tagged with VLAN tag 7 in the Deutsche Telekom infrastucture. We will use the ALLNET ALL126AS2 as the external modem. … Read moreUsing a VDSL line with Sophos UTM