PLANET XRT-501 - Manual (Page 83)

Allow VPN
Passthrough
The IPSec, PPTP, and L2TP protocols are used to establish a
secure connection, and are widely used by VPN (Virtual Private
Networking) programs.
If checked, these VPN connections are allowed.
If not checked, these VPN connections are blocked.
Note: IPSec sessions must NOT use AH (Authentication
Header). Packets using AH cannot be routed correctly.
Drop fragmented
IP packets
If enabled, fragmented IP packets are discarded, forcing
re-transmission of these packets. In some situations, this could
prevent successful communication.
Block TCP Flood A TCP flood is excessively large number of TCP connection
requests. This is usually a DoS (Denial of Service) attack. This
setting should be normally be enabled.
Block UDP Flood A UDP flood is excessively large number of UDP packets. This
is usually a DoS (Denial of Service) attack. This setting should
be normally be enabled.
Block
non-standard
packets
Abnormal packets are often used by hackers and in DoS
attacks, but may also be generated by mis-configured network
devices. (PCs will normally not generate non-standard packets.)
This setting should normally be enabled.
4.9 Upgrade Firmware
The firmware (software) in the XRT-501 can be upgraded using your Web Browser.
You must first download the upgrade file, then select Upgrade on the Administration menu.
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