14-20 User’s Reference Guide

FTP sessions. To allow WAN-originated FTP sessions to a LAN-based FTP server with the IP address a.b.c.d (corresponding to a numbered IP address such as 163.176.8.243), insert the following input filter ahead of the current input filter 1:

Enabled: Yes

Forward: Yes

Source IP Address: 0.0.0.0

Source IP Address Mask: 0.0.0.0

Dest. IP Address: a.b.c.d

Dest. IP Address Mask: 255.255.255.255

Protocol Type: TCP

Source Port Comparison: No Compare

Source Port ID: 0

Dest. Port Comparison: Equal

Dest. Port ID: 21

Note: A similar filter could be used to permit Telnet or WWW access. Set the Dest. Port ID to 23 for Telnet or 80 for WWW.

AURP tunnel. To allow an AURP tunnel between a remote AURP router with the IP address a.b.c.d (corresponding to a numbered IP address such as 163.176.8.243) and a local AURP router (including the Netopia R2020 itself), insert the following input filter ahead of the current input filter 1:

Enabled: Yes

Forward: Yes

Source IP Address: a.b.c.d

Source IP Address Mask: 255.255.255.255

Dest. IP Address: 0.0.0.0

Dest. IP Address Mask: 0.0.0.0

Protocol Type: UDP

Source Port Comparison: Equal

Source Port ID: 387

Dest. Port Comparison: Equal

Dest. Port ID: 387

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Netopia R2020 manual User’s Reference Guide