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Broadband Router User Guide
Options
Respond to
ICMP
Allow IPsec
Allow PPTP
Allow L2TP
The ICMP protocol is used by the "ping" and "traceroute" pro-
grams, and by network monitoring and diagnostic programs.
If checked, the Broadband Router will repond to ICMP pack-
ets 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.
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