100 Command Sets for Command Line Interface

Hash table size per interface: 128 (512 bytes)

Total: 512 bytes

Fragment table size per interface: 32 (640 bytes)

Total: 640 bytes

Max queued buffers: 16

Fragment timeout: 30

Support for incoming fragments: enabled

Support for outgoing fragments: enabled Session timeouts:

ICMP query: 10

UDP: 30

TCP (established): 300

TCP (other): 15

Initial port number: 10000

5. nat protocol

Syntax:

nat protocols

Description:

The nat protocols command lists the application level gateways (ALGs) provided in the current image in order to support particular higher-level protocols, and the port or ports, which each ALG monitors

Example

>nat protocols

Name Port/IP protocol ftp 21/tcp

6. nat sessions

Syntax:

nat sessions <i/f> [all summary]

Description:

The nat sessions command displays a list of currently active NAT sessions on the interface <i/f>. In this context, a session is a pair of source IP addresses and port numbers (and corresponding new port number) that NAT regards as one side of an active connection. For each TCP or UDP session active, the source and destination IP address and port number, and the local port number and the age of the session, are printed.

The all option causes the sessions command to print out information on every session, including sessions, which have timed out. Normally the sessions command only shows active sessions (those which have not timed out). The summary command does not

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Heritage Kayaks Heritage Series manual Nat protocol, Nat sessions