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US-PC2------192.168.20.94255.255.255.224192.168.20.65

US-R2=====

ciscoenableclassconfig terinterface fa0/0ip add 192.168.20.65 255.255.255.224no shutdownexitinteface fa0/1ip add 192.168.20.113 255.255.255.248ip ospf priority 75ip ospf hello-interval 30

no shutdownexitinterface s0/0/0ip add 192.168.20.242 255.255.255.252ip ospf priority 75no shutdownexitinterface Lo0ip add 172.16.0.2 255.255.255.255no shutdownexitrouter ospf 3network 192.168.20.64 0.0.0.31 area 0

network 192.168.20.112 0.0.0.7 area 0network 192.168.20.240 0.0.0.3 area 0passive-interface fastEternet 0/0endshow ip route

=Telnettelnet 192.168.20.240

=====================US-HQ--------

ciscoenableclassshow ip routeconf termip route 10.10.0.0 255.255.252.0 128.107.25.2ip route 0.0.0.0 0.0.0.0 s0/1/0router ospf 3network 192.168.20.244 0.0.0.3 area 0network 192.168.20.240 0.0.0.3 area 0

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default-information originatepassive-interface s0/1/0passive interface s0/1/1exitshow ip route

=================Open US-R1=====================US-R1--------cisco

enableclassconfig terminterface fa0/1ip add 192.168.20.118 255.255.255.248ip ospf priority 150ip ospf hello-interval 30no shutdownexitrouter ospf 3network 192.168.20.0 0.0.0.63 area 0network 192.168.20.112 0.0.0.7 area 0

network 192.168.20.244 0.0.0.3 area 0passive-interface fa0/0exitdo wrinterface s0/0/0ip ospf priority 150exitshow ip route

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