3Com MSR 50 Tcp timer check-state, Tcp timer fin-timeout, Example # Enable the SYN Cookie feature

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n The support for this command varies with devices.

Example # Enable the SYN Cookie feature.

<Sysname> system-view

[Sysname] tcp syn-cookie enable

tcp timer check-state

Syntax tcp timer check-state time-value

undo tcp timer check-state

View System view

Parameter time-value: TCP connection state check interval in seconds, in the range of 1 to 60.

Description Use the tcp timer check-statecommand to configure the TCP connection state check interval.

Use the undo tcp timer check-statecommand to restore the default.

By default, the TCP connection state check interval is 30 seconds.

The device periodically checks the number of TCP connections in each state. If it detects that the number of TCP connections in a state exceeds the maximum number, it will accelerate the aging of TCP connections in such a state.

Note that you need to enable the protection against Naptha attack before executing this command. Otherwise, an error will be prompted.

Related command: tcp anti-naptha enable.

n The support for this command varies with devices.

Example # Set the TCP connection state check interval to 40 seconds.

<Sysname> system-view

[Sysname] tcp anti-naptha enable

[Sysname] tcp timer check-state 40

tcp timer fin-timeout

Syntax tcp timer fin-timeout time-value

undo tcp timer fin-timeout