Netopia CLI 874 - Manual (Page 178)

3-34 Command Line Interface Commands Reference
cp { name | index } ipsec dead-peer-detection ping-reply-timeout 1...65535
show cp { name | index } ipsec dead-peer-detection ping-reply-timeout
These commands allow you to specify or show the maximum period of time (in seconds) an IPsec tunnel
endpoint should wait for the peer’s response to its earliest ping request. If the peer does not respond within
this period, it is deemed to be a dead peer tunnel. Default is 90 seconds.
IPSec MTU Command
Beginning with Version 8.4 firmware, the Command Line Inter face suppor ts the following new Connection Profile
configuration command:
cp [ name | index ] ipsec mtu value
show cp [ name | index ] ipsec mtu
These commands allow you to specify or show a manual maximum transmission unit (MTU) – also called
Maximum Packet Size – parameter for the specified Connection Profile. The maximum value (also the default) is
1500, and the minimum is 100.
This is the star ting value that is used for the MTU when the IPSec tunnel is installed. It specifies the maximum
IP packet length for the encapsulated AH or ESP packets sent by the router. The MTU used on the IPSec
connection will be automatically adjusted based on the MTU value in any received ICMP can't fragment error
messages that correspond to IPSec traffic initiated from the router. Normally the MTU only requires manual
configuration if the ICMP error messages are blocked or other wise not received by the router.
IPSec MTU Connection Profile Command
cp [ name | index ] ipsec mtu value
show cp [ name | index ] ipsec mtu