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Customizing a Firewall on a Router

117384-D Rev 00

4-5

For example, the following command disables the keepalive feature:

firewall#

idle-time-keepalive 0

firewall#

Setting the Keepalive Retransmit Timer

The keepalive retransmit timer specifies

the interval, in seconds, at which a router

retransmits unacknowledged keepalive messages to the management station.

The

default keepalive timer value is 5 seconds. You can use the BCC to specify a new

value.

Navigate to the firewall prompt (for example,

box; ip; firewall) and enter:

retry-timeout-keepalive <

interval>

interval

is the number of seconds, from 0 to 600. A value of 0 prevents the router

from transmitting keepalive messages. The TCP connection is disabled once the

keepalive retransmit timer expires.

For example, the following command sets the keepalive retransmit timer to 25

seconds:

firewall# retry-timeout-keepalive 25

firewall#

Setting the Keepalive Timer Retries

You can specify the number of times to retransmit an unacknowledged keepalive

message.

If after the number of retries the router does not receive an ACK from

the management station, the TCP connection is disabled. The default number of

retries is 10. You can use the BCC to specify a new value.

Navigate to the firewall prompt (for example,

box; ip; firewall) and enter:

retries-keepalive <

value>

value

is the number of retries, from 0 to 100. A value of 0 causes the router to

retransmit only one keepalive message.

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Avaya FireWall-1 Manual do Utilizador Página 57