Appendix
I: Application Level Gateway (ALG) and Port Forwarding
List 
This appendix is a partial list of applications and protocols that should work through the usage of predefined port forwarding configurations and ALGs. It is not a comprehensive list of all applications. It is expected that support for more applications will be needed with time.
D
DNS Server
F
FTP Client, FTP Server, FW1VPN
H
H.323, HTTP Server, HTTPS Server
I
ICMP Echo, IIMAP Client, IMAP Client v.3, IMAP server, Internet Phone, Internet Phone Addressing Server, IPsec Encryption, IPsec ESP, IPsec IKE, IRC
L
L2TP
M
mIRC DCC, IRC DCC, mIRC Chat, mIRC IDENT
N
NNTP Server, NTP
P
POP Client, POP3 Server, PPTP
R
RDP, Remote Desktop 32Rlogin/Rcp, RTSP
S
SDP, SIP, SMTP Server, SQL*NET Tools, SSH Secure Shell, SSH Server
T
Telnet Server
U
USENET News Service
W
Web Server, Windows 2000 Terminal Server
X
X Windows, XP Remote Desktop