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homework3-ans - 1. Routing & Forwarding A company has...

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1. Routing & Forwarding A company has an Intranet (a network system that runs TCP/IP but does not connect to Internet). The topology of the intranet is described as the figure below. Router 1 Router 3 Router 2 Network B Network C 172.28.2.0/24 172.28.3.0/24 172.28.1.0/24 Network A All routers have static routing table that is not updated by any routing protocol. The routing tables are described as follow. Router 1 Entry Destination Netmask Next Hop Interface/IP of Interface 1D 172.28.1.0 255.255.255.0 172.28.1.1 eth0/172.28.1.1 2D 172.28.6.0 255.255.255.0 172.28.6.1 eth1/172.28.6.1 3D 172.28.5.0 255.255.255.0 172.28.5.1 eth2/172.28.5.1 4I 0.0.0.0 0.0.0.0 172.28.6.2 eth1/172.28.6.1 Router 2 Entry Destination Netmask Next Hop Interface/IP of Interface 1D 172.28.2.0 255.255.255.0 172.28.2.2 eth0/172.28.2.2 2D 172.28.6.0 255.255.255.0 172.28.6.2 eth1/172.28.6.2 3D 172.28.4.0 255.255.255.0 172.28.4.2 eth2/172.28.4.2 4I 172.28.3.0 255.255.255.0 172.28.4.3 eth2/172.28.4.2 5I 0.0.0.0 0.0.0.0 172.28.6.1 eth1/172.28.6.2 Router 3 Entry Destination Netmask Next Hop Interface/IP of Interface 1 172.28.3.0 255.255.255.0 172.28.3.3 eth0/172.28.3.3 2 172.28.4.0 255.255.255.0 172.28.4.3 eth1/172.28.4.3 3 172.28.5.0 255.255.255.0 172.28.5.3 eth2/172.28.5.3 4 0.0.0.0 0.0.0.0 172.28.4.2 eth1/172.28.4.3
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a. What is the network_id of the network that connects between Router 1 and Router 2?
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This note was uploaded on 12/16/2010 for the course CS 352 taught by Professor Staff during the Spring '06 term at Rutgers.

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homework3-ans - 1. Routing & Forwarding A company has...

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