Carrier Access Network Device Axxius 800 - Manual (Page 115)

Axxius 800 - Release 2.2 5-15
CLI Commands
add
add (router-lan) filter custom
Use the add (router-lan) filter custom command to add a custom filter to the table of
Layer 2 filters applied to the specified LAN interface.
Syntax: add {rtr_lan-addr} filter custom {pkt-offset} {mask}
{match} {"filter-name"}
Example: add 2:1 filter custom 16 0xFFFF0000 0x45000000
"MyRule"
The example will add a custom layer-2 filter that will match all packets that
contain the hex value 4500 at the 16th octet past the MAC header.
{rtr_lan-addr}
The Router address is in the form {slot:port} or {slot "profile-name"}.
{pkt-offset}
This field will designate where within a packet (past the MAC header) the system is to
begin looking for a matching character string. The offset value range is 0 to 60 bytes. To
create a filter for the data in the MAC header, use the address and Protocol filters. See charts
on the following page for Ethernet Frame and IP Packet formats.
Note: an offset of 12 will create a Source IP Address filter
an offset of 16 will create a Destination IP Address filter
{mask}
The 32-bit mask to indicate which bits to compare to the match value starting at the offset
position. The mask is entered as a 32-bit hexadecimal value (all Fs is exact match
FFFFFFFF).
{match}
The 32-bit match value that is used to match the incoming packet. The match value is
entered as a 32-bit hexadecimal value.
{"filter-name"}
A symbolic name given to identify a filter rule. This name must be enclosed in quotes, with
a maximum of 8 characters.
slot Slot number (1-8) that contains the Router card.
port Port number of the Router.
"profile-name" The profile name for the Router interface. Name must be enclosed
in quotes, with a maximum length of 11 characters.