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Nortel Networks WEB OS 212777 User Manual

Page 189

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Web OS 10.0 Application Guide

Chapter 7: Filtering

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189

212777-A, February 2002

For UDP:

Similarly, for TCP:

>> Filter 5# ../filt 6

(Select the menu for Filter 6)

>> Filter 6# sip any

(From any source IP address)

>> Filter 6# dip 205.177.15.4

(To local DNS Server)

>> Filter 6# dmask 255.255.255.255

(Set mask for exact dest. address)

>> Filter 6# proto udp

(For UDP protocol traffic)

>> Filter 6# sport any

(From any source port)

>> Filter 6# dport domain

(To any DNS destination port)

>> Filter 6# action allow

(Allow matching traffic to pass)

>> Filter 6# ena

(Enable the filter)

>> Filter 6# ../filt 7

(Select the menu for Filter 7)

>> Filter 7# sip 205.177.15.4

(From local DNS Server)

>> Filter 7# smask 255.255.255.255

(Set mask for exact source address)

>> Filter 7# dip any

(To any destination IP address)

>> Filter 7# proto udp

(For UDP protocol traffic)

>> Filter 7# sport domain

(From a DNS source port)

>> Filter 7# dport any

(To any destination port)

>> Filter 7# action allow

(Allow matching traffic to pass)

>> Filter 7# ena

(Enable the filter)

>> Filter 7# ../filt 8

(Select the menu for Filter 8)

>> Filter 8# sip any

(From any source IP address)

>> Filter 8# dip 205.177.15.4

(To local DNS Server)

>> Filter 8# dmask 255.255.255.255

(Set mask for exact dest. address)

>> Filter 8# proto tcp

(For TCP protocol traffic)

>> Filter 8# sport any

(From any source port)

>> Filter 8# dport domain

(To any DNS destination port)

>> Filter 8# action allow

(Allow matching traffic to pass)

>> Filter 8# ena

(Enable the filter)

>> Filter 8# ../filt 9

(Select the menu for Filter 9)

>> Filter 9# sip 205.177.15.4

(From local DNS Server)

>> Filter 9# smask 255.255.255.255

(Set mask for exact source address)

>> Filter 9# dip any

(To any destination IP address)

>> Filter 9# proto tcp

(For TCP protocol traffic)

>> Filter 9# sport domain

(From a DNS source port)

>> Filter 9# dport any

(To any destination port)

>> Filter 9# action allow

(Allow matching traffic to pass)

>> Filter 9# ena

(Enable the filter)