Wildcard in ACL

[Noffal]

Hi,

I found configuration below on my customer switch:

Extended IP access list ACL-POSTURE-REDIRECT
10 permit tcp any 10.0.0.1 0.255.255.0 eq www

Anyone know what is mean of wildcard 0.255.255.0 ?

Glad to hear your response!

[Flavio Miranda]

@Noffal 

 Sticking with wild card concept, 0 means "must match" and 255 means "I dont care"

that means the first octect and the last octect must match and the second and third octect can be anything

This IP will be allowed

10.x.x.1

This IP will be denied

11.x.x.1 or 10.x.x.2

[MHM Cisco World]

This wrong wildcard I think 

There is no meaning of it

MHM