The following ports are open for eduroam users:

E-mail

• IMSP: TCP/406 egress and established.
• IMAP4: TCP/143 egress and established.
• IMAP3: TCP/220 egress and established.
• IMAPS: TCP/993 egress and established.
• POP: TCP/110 egress and established.
• POP3S: TCP/995 egress and established.
• SMTPS: TCP/465 egress and established.
• Message submission: TCP/587 egress and established.

Web

• HTTP: TCP/80 egress and established.
• HTTPS: TCP/443 egress and established.

VPN

• Standard IPSec VPN: IP protocols 50 (ESP) and 51 (AH) both egress and ingress; TCP/500 (IKE) egress only.
• IPSec NAT traversal: UDP/4500 egress and established.
• Cisco IPSec NAT traversal: TCP/10000 egress and established.
• PPTP: IP protocol 47 (GRE) egress and established; TCP/1723 egress and established.
• OpenVPN: TCP/5000 egress and established.
• IPv6 Tunnel Broker NAT traversal: UDP/3653 and TCP/3653 egress and established.

Remote Desktop

• RDP: TCP/3389 egress and established.
• VNC: TCP/5900 egress and established.
• Citrix: TCP/1494 egress and established.

Directory Services

• LDAP: TCP/389 egress and established.
• LDAPS: TCP/636 egress and established.

Secure Shell

• SSH: TCP/22 egress and established.

File transfer

• Passive (S)FTP: TCP/21 egress and established.