D-Link dws-1008 manual Subnet Masks, Wildcard Masks

MAC Address Notation

MSS displays MAC addresses in hexadecimal numbers with a colon (:) delimiter between bytes—for example, 00:01:02:1a:00:01.You can enter MAC addresses with either hyphen (-) or colon (:) delimiters, but colons are preferred.

For shortcuts:

•You can exclude leading zeros when typing a MAC address. MSS displays of MAC addresses include all leading zeros.

•In some specified commands, you can use the single-asterisk (*) wildcard character to represent from 1 byte to 5 bytes of a MAC address. (For more information, see “MAC Address Globs” on page 7.)

IP Address and Mask Notation

MSS displays IP addresses in dotted decimal notation—for example, 192.168.1.11 MSS makes use of both subnet masks and wildcard masks.

Subnet Masks

Unless otherwise noted, use classless interdomain routing (CIDR) format to express subnet masks— for example, 192.168.1.112/24. You indicate the subnet mask with a forward slash (/) and specify the number of bits in the mask.

Wildcard Masks

Security access control lists (ACLs) use source and destination IP addresses and wildcard masks to determine whether the DWS switch filters or forwards IP packets. Matching packets are either permitted or denied network access. The ACL checks the bits in IP addresses that correspond to any Os (zeros) in the mask, but does not check the bits that correspond to Is (ones) in the mask.You specify the wildcard

mask in dotted decimal notation.

For example, the address 10.0.0.0 and mask 0.255.255.255 match all IP addresses that begin with 10 in the first octet.

The ACL mask must be a contiguous set of zeroes starting from the first bit. For example, 0.255.255.255, 0.0.255.255, and 0.0.0.255 are valid ACL masks. However, 0.255.0.255 is not a valid ACL mask.

D-Link DWS-1008 CLI Manual