Table of Contents
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Options
Respond to
ICMP
Allow IPsec
Allow PPTP
Allow L2TP
Allow TFTP
firmware up-
grade
The ICMP protocol is used by the "ping" and "trace route" programs,
and by network monitoring and diagnostic programs.
If checked, XRT-811 will respond to ICMP packets received from
the Internet.
If not checked, ICMP packets from the Internet will be ignored.
Disabling this option provides a slight increase in security.
The IPSec protocol is used to establish a secure connection, and is
widely used by VPN (Virtual Private Networking) programs.
If checked, IPSec connections are allowed.
If not checked, IPSec connections are blocked.
PPTP (Point to Point Tunneling Protocol) is widely used by VPN
(Virtual Private Networking) programs.
If checked, PPTP connections are allowed.
If not checked, PPTP connections are blocked.
L2TP is a protocol developed by Cisco for VPNs (Virtual Private
Networks).
If checked, L2TP connections are allowed.
If not checked, L2TP connections are blocked.
If enabled, TFTP (Trivial FTP) connections can be made to this device.
TFTP can be used to upgrade the firmware. This is normally not
required, and should not be enabled unless necessary.
You must obtain the firmware upgrade file first; instructions for
using TFTP will be available with the upgrade.
Security Configuration
69
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