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Cisco H.323 VC-289 User Manual

Page 52

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Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

VC-340

Cisco IOS Voice, Video, and Fax Configuration Guide

Step 20

Router(config)# access-list access-list-number

{permit | deny} source source-mask [destination

destination-mask] {eq | neq} [[source-object]

[destination-object] [identification] any]

Creates an access list.

The keywords and arguments are as follows:

access-list-number—Specifies the integer that
you choose. The number should be between 300
and 399, and it uniquely identifies the access list.

permit—Permits access when there is an address
match.

deny—Denies access when there is an address
match.

source—Specifies the source address. DECnet
addresses are written in the form area.node. For
example, 50.4 is node 4 in area 50. All addresses
are in decimal.

source-mask—Specifies the mask to be applied
to the address of the source node. All masks are
in decimal.

destination—(Optional) Specifies the DECnet
address of the destination node in decimal
format. DECnet addresses are written in the form
area.node. For example, 50.4 is node 4 in area 50.
All addresses are in decimal.

destination-mask—(Optional) Specifies the
destination mask. DECnet addresses are written
in the form area.node. For example, 50.4 is node
4 in area 50. All masks are in decimal.

eq—Specifies that the item matches the packet if
all the specified parts of the source object,
destination object, and identification match the
data in the packet.

neq—Specifies that the item matches the packet
if any of the specified parts do not match the
corresponding entry in the packet.

source-object—(Optional) Contains the
mandatory keyword src and one of the following
optional keywords:

eq | neq | lt | gt—Specifies equal to, not
equal to, less than, or greater than. These
keywords must be followed by the argument
object-number, a numeric DECnet object
number.

exp—Stands for expression; followed by a
regular-expression that matches a string. See
the “Regular Expressions” appendix in the
Cisco IOS Dial Technologies Command
Reference
for a description of regular
expressions.

Command

Purpose