Why are loopbacks advertised as /32 host routes in OSPF?thanks!!!

i want to analyse the traffic of ip packet from a lab source add via internet to distination add, include from arp in a local lan to routing icmp in the internet, i want to see the detail traffic trail, i m very distrust to this all o long time !who...

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My cisco 2611 router is running nomally ,via tftp may entry ,but cann't entry via super terminal of computer ? What's wrong ?

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