D-Link DSL-2750 - Alg

34D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
ALG
An application-level gateway (ALG) is a security component that
augments a firewall or NAT employed in a network. It allows
customized NAT lters to support address and port translation for
specied application layer protocols.
TFTP Pass
Through:
Check to enable or disable TFTP pass through functionality.
FTP Pass
Through:
Check to enable or disable FTP pass through functionality.
PPTP Pass
Through:
Check to enable or disable PPTP pass through functionality.
RTSP Pass
Through:
Check to enable or disable RTSP pass through functionality.
L2TP Pass
Through:
Check to enable or disable L2TP pass through functionality.
H323 Pass
Through:
Check to enable or disable H323 pass through functionality.
SIP Pass
Through:
Check to enable or disable SIP pass through functionality.
IPSEC Pass
Through:
Check to enable or disable IPSEC pass through functionality.