Tp-Link TL-R600VPN Инструкция по эксплуатации онлайн [41/82] 39137

TL-R600VPN SafeStream Gigabit Broadband VPN Router User Guide

Figure 4-25

¾ Firewall - Enable the general firewall or not.

• SPI Firewall - SPI (Stateful Packet Inspection) keeps track of the state of network

connections traveling across it. It distinguishes legitimate packets for different types of

connections. Only packets matching a known active connection will be allowed by the

firewall; others will be rejected. SPI Firewall is enabled by factory default. If you want all

the computers on the LAN exposed to the external network, you can disable it.

¾ VPN - VPN Passthrough must be enabled if you want to allow VPN tunnels using VPN

protocols to pass through the Router.

• PPTP Passthrough - Check the box before Enable to allow the PPTP tunnels to pass

through the router.

• L2TP Passthrough - Check the box before Enable to allow the L2TP tunnels to pass

through the router.

• IPSec Passthrough - Check the box before Enable to allow the IPSec tunnels to pass

through the router.

¾ ALG - You can determine whether to provide ALG (Application Level Gateway) service for

FTP, TFTP, H323 and RTSP to keep these special applications from the effect of NAT

service.

• FTP ALG - Select Enable to allow FTP services to operate properly.

• TFTP ALG - Select Enable to allow TFTP services to operate properly.

• H323 ALG - Select Enable to allow H323 services to operate properly.

• RTSP ALG - Select Enable to allow RTSP services to operate properly.