Quick Reference Guide

Reference Guide for the Model RT338 ISDN Router

Configuring Filters 9-13

Define the next five rules the same way—one for each combination of the three port numbers

and the two protocol types.

The last rule, however, is slightly different. For Action Not Matched, select “Forward.”

Any packet that has not matched any of the six rules is forwarded for routing.

When all six rules are defined, Menu 21.1 looks as it does in Figure 9-7. As a visual check,

make sure that all six rules contain “Y” in the A (Active) field, “D” (Drop) in the m (matched)

field, and “N” (next rule) in the n (not matched) field, except for the last rule, which should

have “F” (Forward) in the n field.

Figure 9-7 shows the Filter Rules Summary menu with all six rules defined.

Figure 9-7. Filter Rules Summary Menu

Menu 21.1 - Filter Rules Summary

# A Type Filter Rules M m n

- - ---- --------------------------------------------------------------- - -

1 Y IP Pr=6, SA=0.0.0.0, SP=137, DA=0.0.0.0 N D N

2 Y IP Pr=6, SA=0.0.0.0, SP=138, DA=0.0.0.0 N D N

3 Y IP Pr=6, SA=0.0.0.0, SP=139, DA=0.0.0.0 N D N

4 Y IP Pr=17, SA=0.0.0.0, SP=137, DA=0.0.0.0 N D N

5 Y IP Pr=17, SA=0.0.0.0, SP=138, DA=0.0.0.0 N D N

6 Y IP Pr=17, SA=0.0.0.0, SP=139, DA=0.0.0.0 N D F

Enter Filter Rule Number (1-6) to Configure:

Filter.fm Page 13 Friday, October 6, 2000 5:28 PM