AddPac VoiceFinder AP2120 User's Guide Page 103

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VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
103 -
[Example] Extended Access-List Configuration and Usage
router (config)# In this mode, Access-list Config is possible.
router (config)# access-list 31 deny tcp 140.1.1.0 0.0.0.255
145.1.1.0 0.0.0.255 eq ftp
Denies all TCP packets accessing
to the host whose destination address is “145.1.1.0/24Bit” from
“140.1.1.0/24bit” of the source address through the ftp port.
router (config)# access-list 31 deny tcp 140.1.1.0 0.0.0.255
145.1.1.0 0.0.0.255 eq ftp-data
Denies all TCP packets
accessing to the host whose destination is “145.1.1.0/24Bit” from
“140.1.1.0/24bit” of the source address through the ftp-data port.
router (config)# access-list 31 permit tcp 140.1.1.0
0.0.0.255 145.1.1.0 0.0.0.255 eq ftp establish
Permits only
packets whose sessions are set already among the TCP packets
accessing to the host whose destination is “145.1.1.0/24Bit” from
“140.1.1.0/24bit” of the source address through the ftp port.
router (config)# access-list 31 permit ip any any Permits
all IP packets except those matching conditions above.
router (config)# interface Ethernet 0 0 Enters into the
configuration mode of the interface Ethernet 0.0
router(config-ether0.0)# ip Enters into ip configuration
mode.
router (config-ether0.0)# ip access-group 31 in Applies
the Access-List 31 that has been set for all IP packets incoming
through the Ethernet 0.0 interface.
router (config-ether0.0)# end
router # show access-list 31
Shows the Access-List 31 that
has been set.
Extended Access List (Index = 31)
1 : deny tcp 140.1.1.0 0.0.0.255 145.1.1.0 0.0.0.255
2 : deny tcp 140.1.1.0 0.0.0.255 145.1.1.0 0.0.0.255 eq
ftp-data
3 : deny tcp 140.1.1.0 0.0.0.255 145.1.1.0 0.0.0.255 eq ftp
established
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