User's Manual

Table Of Contents
230 Operation
Chapter 4 - Operation and Administration
from the database. It is not possible to edit the parameters of an existing L2
Filtering Rule. The database can hold up to 255 L2 Filtering Rules.
The configurable L2 Filtering Rule parameters are:
4.11.4.8.1.1 Rule Name
The name of the L2 Rule. The L2 Rule Name is a string of 1 to 32 printable
characters.
4.11.4.8.1.2 MAC Address
The base MAC Address that is used together with the MAC Address Mask to define
a range of MAC addresses. A string of 6 octets (where each octet is represented by
two hexadecimal numbers) separated by dashes ("-"). An empty entry means
"Any". An "Any" MAC Address means that the filter is defined only by the
Ethertype field.
4.11.4.8.1.3 MAC Address Mask
The mask that is used together with the MAC Address to define a range of MAC
addresses. A string of 6 octets (where each octet is represented by two
hexadecimal numbers) separated by dashes ("-"). In a binary representation the
string must comprise a series of contiguous binary '1's starting from the MSB,
followed by a series of contiguous binary '0's (if the range includes more than a
single address). The MAC Address Mask parameter is not applicable for an "Any"
MAC Address.
4.11.4.8.1.4 MAC Address Direction
The direction (Source or Destination) of the MAC Address. Indicates whether the
range defined by the MAC Address and MAC Address Mask is for the Source MAC
Address field or the Destination MAC Address field in the Ethernet frame. The
MAC Address Direction parameter is not applicable to "Any" MAC Address.
4.11.4.8.1.5 Ethertype
The Ethertype of the Ethernet frame. The Ethertype is defined by 4 hexadecimal
digits. An empty entry means "Any" and is applicable only if a MAC Address range
is defined (the combination of "Any" for both the MAC Address and Ethertype is
not allowed).
4.11.4.8.2 L3/L4 Filtering Rules
An L3/L4 (Layer 3/Layer 4) Filtering Rule includes the IP Address and Protocol. A
range of IP Addresses can be defined for either the Source or Destination IP
Address field. It is possible to define "Any" for either the IP Address or Protocol
field (but not for both fields). If the specified Protocol is either TCP (6) or UDP (17),
either the Source or Destination Port can be defined. It is also possible to define
"Any" Port. The direction is applicable for both IP Address and Port.