HP VPN Server Appliance sa3110/sa3150/sa3400/sa3450 - Virtual Private Networking Concepts Guide

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Hewlett-Packard Company Virtual Private Networking Concepts Guide
5-7
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Firewall and Tunnels Overview (page 5-1)
Tunnel Types (page 5-8)
Tunnel Termination and Firewall Rules (page 5-31)
To IP address 0.0.0.0 Do not limit which
addresses can
access or be
accessed by the
DNS.
To subnet 0.0.0.0
To port 53 DNS updates are
requested on this
port.
From IP address 198.53.144.2 You allow only the
DNS machine to be
addressed on the
red (trusted)
network.
From subnet 255.255.255.255
From port 53 Make DNS requests
on this port.
Protocol TCP Make DNS requests
and refreshes over
TCP, not UDP.
Action permit You allow access.