Zhone sia2410r ユーザーガイド
Net To Net Technologies SIA2410R User Manual
Net To Net Technologies 43
addresses and the global address pool called test.
(conf)# nat portmap 192.168.1.1 192.168.1.254 test2
establishes port mapping between local network addresses
and the global address pool called test2.
(conf)# nat outside wan
The packet sending and receiving through the WAN
interface will be translate.
Management of the translation table
Translation timeout :
NAT has an internal translation table. Each translation table entry
represents one TCP, UDP or ICMP connection (Note: a port mapping
can generate many TCP and UDP connections.) A translation table
entry is reused as long as traffic includes packets that match an entry.
All the entries for a connection deleted when the connection finishes.
The SIA2410R unit removes entries from the translation table on the
basis of the following timeouts:
NAT has an internal translation table. Each translation table entry
represents one TCP, UDP or ICMP connection (Note: a port mapping
can generate many TCP and UDP connections.) A translation table
entry is reused as long as traffic includes packets that match an entry.
All the entries for a connection deleted when the connection finishes.
The SIA2410R unit removes entries from the translation table on the
basis of the following timeouts:
> TCP translations time out after 240 seconds
> UDP translations time out after 120 seconds
> ICMP translations time out after 10 seconds
you can manually change timeouts using the following command :
Command
nat timeout tcp|udp|icmp <seconds>
Parameters
tcp|udp|icmp
TCP or UDP or ICMP translations
<seconds>
timeout value in seconds