Scenario 7-1: IP Filtering Sample 1 503
Scenarios
Scenario 7-1: IP Filtering Sample 1
Scenarios 7-1 through 7-3 all use Figure 7-13, each with a different set of requirements for
filtering. In each case, configure a correct access list for the routers and enable the access list.
Place the access list in the router that filters the unneeded packets as quickly as possible--that
is, before the packets have been sent far away from the originator.
Figure 7-13
Network Diagram for IP Filtering Scenarios 7-1, 7-2, and 7-3
Sergei
10.1.4.98
Grigory
210.1.1.1
Melissa
210.1.1.2
Ivan
198.1.1.14
Anna
198.1.1.18
Tonya
10.1.4.99
Barnaul
Nova
198.1.1.2
Gorno
s1
s1
s1
s0
s0
s0
Subnet 10.1.3.0
/2
4
Subnet 10.1.4.0/ 24
Subnet 10.1.2.0
/2
4
Network 210.1.1.0
210.1.1.252
10.1.4.97
Network 198.1.1.0
Subnet 10.1.1.0/24
ch07.fm Page 503 Monday, March 20, 2000 5:14 PM