Basic Configuration
Page 308 7750 SR OS Router Configuration Guide
Basic Configuration
The most basic IP, IPv6, and MAC filter policies must have the following:
A filter ID
Template scope, either exclusive or template
Default action, either drop or forward
At least one filter entry
Specified action, either drop or forward
Specified matching criteria
The following example displays a sample configuration of an IP filter policy. The configuration
blocks all incoming TCP session except Telnet and allows all outgoing TCP sessions from IP net
10.67.132.0/24. Figure 27 depicts the interface to apply the filter.
A:ALA-1>config>filter# info
----------------------------------------------
ip-filter 3 create
entry 10 create
match protocol 6
dst-port eq 23
src-ip 10.67.132.0/24
exit
action forward
exit
entry 20 create
match protocol 6
tcp-syn true
tcp-ack false
exit
action drop
exit
exit
----------------------------------------------
A:ALA-1>config>filter#
Figure 27: Applying an IP Filter to an Ingress Interface
ALA-1
Ingress
Filter
TCP Connection
OSRG007