User`s guide

Defining Filters and Firewalls
Introduction to filters
Pipeline User’s Guide Preliminary January 30, 1998 6-3
To define which packets will be allowed to cross the WAN interface, apply a data
filter to a Connection or Answer profile using the following steps:
1
Open Ethernet > Connection or Answers > profile
Note:
You can apply a filter in the Answer profile only if the Profile Reqd
parameter is set to No.
2
Open the Session Options submenu.
3
Apply a data filter.
For example:
Data Filter=4
If this parameter is set to zero, the default, no filter is applied. To apply a
filter, specify its profile number. You can view the profile number by opening
the Filters menu. You don’t have to specify the whole number, just the
unique portion of it, for example, 1, 2, 3,...
4
Close and save the profile.
A filter applied to a Connection profile takes effect only when the connection
goes from an offline state to a call-placed state.
To define which packets will be allowed to cross the Ethernet interface, apply a
data filter to a Connection profile using the following steps:
1
Open Ethernet > Mod Config > Ether Options.
2
Apply the data filter.
For example:
Data Filter=4
If this parameter is set to zero, the default, no filter is applied. To apply a
filter, specify its profile number. You can view the profile number by opening
the Filters menu. You don’t have to specify the whole number, just the
unique portion of it, for example, 1, 2, 3,...
3
Close and save the profile.
A filter applied to the Ethernet interface takes effect immediately. If you change
any of the conditions in the Filter profile definition, new or changed conditions
are applied as soon as you save the Filter profile.
For an example data filter, see “Example filters” on page 6-12.