CBS250 ACL - wildcard, whats the difference

[Hubsi-Smith]

Hello,

actually I think I have an understanding problem with ACL on the CBS250 series.

I use a DHCP Server with IP: 192.168.100.65/27

When I set this input rule:

permit udp any any 192.168.100.65 0.0.0.0 67-68 ace-priority 1

The client cannot recieve the DHCP server.

When I change the input rule to:

permit udp any any 192.168.100.65 255.255.255.255 67-68 ace-priority 1

The client recieve an IP address.

Why thought always that 0.0.0.0 is for wildcard the host. Is there an special for the cbs250 series?

[Flavio Miranda]

Access-list most frequently uses host/mask nottation. Usually routing protocol like OSPF use wiildcard mask and some newer devices now prefer /XX

You could try 0.0.0.255  which means: must match 192.168.100 but anything in the last octect.