ZyXEL Communications P-660R-Tx Series Support Notes page 52

You can edit filter rule to accept or deny LAN packets from/to the IP alias 1/2 go
through the P-660R-Tx by command in CLI:
lan index [index number]
Usage: index number =1 main LAN
lan filter <incoming|outgoing> <tcpip|generic> [set#]
Usage: set#= the corresponding filter set number you‟ve configured
lan save
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P-660R-Tx Series Support Note s
2 IP Alias#1
3 IP Alias#2
52