Security Configuration
69
Options
Respond to
ICMP
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.
Allow IPsec
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.
Allow PPTP
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.
Allow L2TP
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.
Allow TFTP
firmware up-
grade
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.
