Firewall

The network is protected by a generic firewall against attacks from the Internet. The configuration of the firewall is not very restrictive. The firewall protects against many simple attacks from outside, but not against all. Especially it does not protect against attacks from other residents targeting your own computer!

For outgoing connections all ports are open.

For IPv4 dialin addresses the following ports are allowed in incoming direction:

• FTP (port 20/21 UDP/TCP)
• SSH (port 22 TCP)
• HTTP (port 80 TCP)
• IDENT (port 113 TCP)
• HTTPS (port 443 TCP)
• IPSec (port 500 UDP, IP protocols 50, 51)
• PPTP (IP protocol 47)
• ports 1024-65535 TCP
• ports 1024-65535 UDP (excluding 1900 UDP)

For IPv6 dialin addresses the following ports are allowed in incoming direction:

• FTP (port 20/21 UDP/TCP)
• SSH (port 22 TCP)
• HTTP (port 80 TCP)
• IDENT (port 113 TCP)
• HTTPS (port 443 TCP)
• ports 50000-50010 TCP
• ports 50000-50010 UDP