Filter
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61200375L1-1
TA 850
T1 RCU VoATM UIG/61200376L2-31A
Page 37 of 72
© 2001, ADTRAN, Inc. TA 850 User Manual
Security
Filter Defines
The TA 850 can filter packets based on certain parameters within the packet. The method used by the
TA 850 allows the highest flexibility for defining filters and assigning them to a PVC. The filters are set
up in two steps: (1) defining the packet types, and (2) adding them to a list under the PVC. This menu is
used to define the individual filter defines based on packet type.
Filter Defines /MAC Filter Defines
The MAC filter is applied to bridge packets only. Bridge packets which are forwarded by the bridge
functionality of the TA 850 are defined here. Up to 32 MAC defines can be specified.
Filter Defines /Pattern Filter Defines
The pattern filter is applied to bridge packets only. That is any packet which is forwarded by the bridge
functionality of the TA 850. Up to 32 pattern defines can be specified.
Filter Defines /IP Filter Defines
The IP filter defines apply to any IP packet, whether it is routed or bridged. Up to 32 IP defines can be
specified.
N
AME
Identifies the filter entry.
S
RC
A
DDR
48-bit MAC source address used for
comparison. (hexadecimal format)
SRC MASK
Bits in the MAC source address which are
compared. (hexadecimal format)
D
EST
A
DDR
48-bit MAC destination address used for
comparison. (hexadecimal format)
D
EST
M
ASK
Bits in the MAC destination address used for
comparison. (hexadecimal format)
MAC TYPE
16-bit MAC type field used for comparison.
(hexadecimal format)
T
YPE
M
SK
Bits in the MAC type field used for comparison.
(hexadecimal format)
N
AME
Identifies the filter entry.
O
FFSET
Offset from beginning of packet of where to
start the pattern comparison.
P
ATTERN
64 bits used for comparison. (hexadecimal
format)
M
ASK
Bits in the pattern to be compared.
(hexadecimal format)
N
AME
Identifies the filter entry.
IP S
RC
IP address compared to the source address.
(dotted decimal format)