Advanced Security - Planet WNRT-617 User Manual

ALG
Click the Save button to save your settings.

5.9.2 Advanced Security

Choose menu "Security → Advanced Security", you can protect the Router from being attacked by
TCP-SYN Flood, UDP Flood and ICMP-Flood in the screen as shown in
PPTP Passthrough - Point-to-Point Tunneling Protocol (PPTP)
allows the Point-to-Point Protocol (PPP) to be tunneled through
an IP network. To allow PPTP tunnels to pass through the
Router, keep the default, Enabled.
L2TP Passthrough - Layer 2 Tunneling Protocol (L2TP) is the
method used to enable Point-to-Point sessions via the Internet on
the Layer 2 level. To allow L2TP tunnels to pass through the
Router, keep the default, Enabled.
IPSec Passthrough - Internet Protocol Security (IPSec) is a suite
of protocols for ensuring private, secure communications over
Internet Protocol (IP) networks, through the use of cryptographic
security services. To allow IPSec tunnels to pass through the
Router, keep the default, Enabled.
It is recommended to enable Application Layer Gateway (ALG)
because ALG allows customized Network Address Translation (NAT)
traversal filters to be plugged into the gateway to support address and
port translation for certain application layer "control/data" protocols
such as FTP, TFTP, H323 etc.
FTP ALG - To allow FTP clients and servers to transfer data
across NAT, keep the default Enable.
TFTP ALG - To allow TFTP clients and servers to transfer data
across NAT, keep the default Enable.
H323 ALG - To allow Microsoft NetMeeting clients to
communicate across NAT, keep the default Enable.
Table 5-27
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User's Manual of WNRT-617
Figure 5-32.