ADTRAN 850 Manual do Utilizador descarregar pdf (Página 31)

61200375L1-1

TA 850

TA 850 SDSL RCU UIG/61200377L1-31A

Page 31 of 76

to respond to Inverse ARP requests. If this IPX address is left as 0, the link is treated as unnumbered

and the TA 850 responds to the Inverse ARP with its Ethernet IPX address.

DLCI Mapping/Bridge Map

This menu is used to permit bridging of packets over this DLCI. Each DLCI or virtual circuit must be

assigned a bridge group. The bridge group treats all virtual circuits as one circuit. Bridge packets des-

tined to be transmitted out a particular bridge group are copied and transmitted individually out each

DLCI in the bridge group. However, incoming bridge packets received from one DLCI are not retrans-

mitted out the other DLCIs in the same bridge group. Any device in the bridge group must transmit to

each DLCI. This requires a fully meshed circuit, meaning each device has a virtual circuit to each other.

Bridge Map/Active

When this is set to Yes, the TA 850 will bridge packets to and from this DLCI. Bridge packets are any

packets that are not IP or IPX packets except when the router is turned off, in which case that particular

router’s protocol packets are bridged. A setting of No (def) means that no bridging will occur.

Bridge Map/Bridge Group

The bridge group that this DLCI is part of is specified here as Group 1 (def) or Group 2.These

groups correspond to the spanning tree protocols Bridge Group 1 and Bridge Group 2.

DLCI Mapping/Filter

The TA 850 can block packets in and out of a PVC port by use of the filters. They are set up in two

steps: 1) define the types of packets that would be of interest in the C

ONFIGURATION

ECURITY

ILTER

EFINES

menu, and 2) set up the filter type and combination of defines that will cause a packet block.

Filter/In from PVC

The packets which come into the TA 850 via this PVC can be filtered in three ways:

ISABLED

(

DEF

)

Turns off packet input filtering. No incoming packets

from this PVC are blocked.

LOCK

All incoming packets from this PVC are blocked ex-

cept as defined in the F

ILTERS

XCEPTIONS

list.

ORWARD

All incoming packets from this PVC are not blocked

except as defined in the F

ILTERS

XCEPTIONS

list.

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