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Global Mask
IP Mask associated with defined Global IP Address. Default is LAN IP Mask.
ICMP Default Addr
Default source address used to answer any ICMP request. Default is LAN IP
Address. ICMP requests are not transferred from the Global to the Local side.
Rather they are answered by the unit itself since Local addresses are private and
do not receive unsolicited requests.
Filter Non Local
Discards any packet with non corporate source address. Default is Enable.
Address
The screen parameters listed below are related to the NAT Control Block Timer.
Note that default values should be in accordance with most NAT applications. The
timers' values minimize NAT resources. Generally, when a timer has expired, the
resources used are no longer needed. Those resources will then be available for
other connection resources.
IP Entry Timer
The maximum time (in seconds) NAT will use resources when not using TCP,
UDP, or ICMP.
TCP Connection
The maximum time (in seconds) NAT will use resources when attempting to
Timer
establish a TCP connection.
TCP Closing Timer
The maximum time (in seconds) NAT will use resources when attempting to close
a TCP connection.
TCP Disconnected
The maximum time (in seconds) NAT will use resources when attempting to
Timer
disconnect from TCP.
TCP Sequence
The maximum time (in seconds) NAT will use resources when managing TCP
Delta Timer
Packet Sequencing.
8300-A2-GB20-00
Values: 0
6 5535
−
Default: 120
Values: 0
6 5535
−
Default: 300
Values: 0
6 5535
−
Default: 0
Values: 0
6 5535
−
Default: 120
Values: 0
6 5535
−
Default: 180
April 2003
3. VT100 Interface
3-63
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