Filter for blocking a client

Filter Example

A filter for blocking a specific client

Configuration

1. Create a filter set in Menu 21, e.g., set 1

`Menu 21 - Filter Set Configuration`

`Filter Filter`
`Set # Comments Set # Comments`
`------ ----------------- ------ -----------------`
`1 Block a client 7 _______________`
`2 8 _______________`
`3 9 _______________`
`4 _______________ 10 _______________`
`5 _______________ 11 _______________`
`6 _______________ 12 _______________`

`Enter Filter Set Number to Configure= 0`

`Edit Comments=`

`Press ENTER to Confirm or ESC to Cancel:`

2. One rule for blocking all packets from this client

`Menu 21.1.1 - TCP/IP Filter Rule`

`Filter #: 1,1`
`Filter Type= TCP/IP Filter Rule`
`Active= Yes`
`IP Protocol= 0 IP Source Route= No`
`Destination: IP Addr= 0.0.0.0`
`IP Mask= 0.0.0.0`
`Port #=`
`Port # Comp= None`
`Source: IP Addr= 192.168.1.5`
`IP Mask= 255.255.255.255`
`Port #=`
`Port # Comp= None`
`TCP Estab= N/A`
`More= No Log= None`
`Action Matched= Drop`
`Action Not Matched= Forward`

`Press ENTER to Confirm or ESC to Cancel:`

Key Settings:

Source IP addr................Enter the client IP in this field
IP Mask..........................here the IP mask is used to mask the bits of the IP address given in the 'Source IP Addr=' field, for one workstation it is 255.255.255.255.
Action Matched................Set to 'Drop' to drop all the packets from this client
Action Not Matched.........Set to 'Forward' to allow the packets from other clients

3. Apply the filter set number '1' to the 'Output Protocol Filter Set' field in the remote node setup.

All contents copyright © 1999 ZyXEL Communications Corporation.