Planet VRT-401 User Manual page 70

VRT-401 User Manual
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" pro-
grams, and by network monitoring and diagnostic programs.
If checked, VRT-401 will respond to ICMP packets received
from the Internet.
If not checked, ICMP packets from the Internet will be ig-
nored. 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.
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