TP-Link TD-W8980 TD-W8980 V1 User Guide - Page 44

ALG Settings - vpn server

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TD-W8980 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide ) Note: Only the WAN Ports can use MAC Address Clone function. All the clone MAC addresses must not be the same with each other. 4.5.6 ALG Settings Choose menu "Network"Æ"ALG Settings", and then you can configure the basic security in the screen as shown in Figure 4-19. Figure 4-19 ¾ Virtual Private Network (VPN): VPN Passthrough must be enabled if you want to allow VPN tunnels using VPN protocols to pass through the modem router. • 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 modem router, click Enable. • L2TP Passthrough: Layer Two Tunneling Protocol (L2TP) is the method used to enable Point-to-Point sessions via the Internet on the Layer Two level. To allow L2TP tunnels to pass through the modem router, click Enable. • 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 modem router, click Enable. ¾ Application Layer Gateway (ALG): 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 etc. • FTP ALG: To allow FTP clients and servers to transfer data across NAT, click Enable. • TFTP ALG: To allow TFTP clients and servers to transfer data across NAT, click Enable. 35

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TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
35
)
Note:
Only the WAN Ports can use MAC Address Clone function. All the clone MAC addresses must not
be the same with each other.
4.5.6 ALG Settings
Choose menu “
Network
”
Æ
“
ALG Settings
”, and then you can configure the basic security in the
screen as shown in Figure 4-19.
Figure 4-19
¾
Virtual Private Network (VPN):
VPN Passthrough must be enabled if you want to allow VPN
tunnels using VPN protocols to pass through the modem router.
•
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 modem router, click
Enable
.
•
L2TP Passthrough:
Layer Two Tunneling Protocol (L2TP) is the method used to
enable Point-to-Point sessions via the Internet on the Layer Two level. To allow L2TP
tunnels to pass through the modem router, click
Enable
.
•
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
modem router, click
Enable
.
¾
Application Layer Gateway (ALG):
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 etc.
•
FTP ALG:
To allow FTP clients and servers to transfer data across NAT, click
Enable
.
•
TFTP ALG:
To allow TFTP clients and servers to transfer data across NAT, click
Enable
.