ipsec anti-replay window
Use ipsec anti-replay window to set the anti-replay window size.
Use undo ipsec anti-replay window to restore the default.
Syntax
ipsec anti-replay window width
undo ipsec anti-replay window
Default
The anti-replay window size is 64.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
width: Specifies the size for the anti-replay window. It can be 64, 128, 256, 512, or 1024 packets.
Usage guidelines
Service data packets might be received in a very different order than their original order, and the IPsec anti-replay feature might drop them as replayed packets, affecting normal communications. If this happens, disable IPsec anti-replay checking or adjust the size of the anti-replay window as required.
Changing the anti-replay window size affects only the IPsec SAs negotiated later.
Examples
# Set the size of the anti-replay window to 128.
<Sysname> system-view [Sysname] ipsec anti-replay window 128
Related commands
ipsec anti-replay check