IPv4 addresses more expensive than .com domains

Microsoft has bought more than half a million IPv4 addresses from the bankrupt Nortel Networks for 7 million dollar. At $11 per address, this is more expensive than a .com domain name. (although one can argue that it is not more expensive than a good .com domain name).
IPv4 free address space is depleted since February.

routing components / Solaris 10

• Commands
  • route: manage routing table
  • netstat -rn: view routing table
  • routeadm: enable/disable routing services
  • svcadm: enable/disable routing services (in addition to routeadm from Solaris 10 8/7)
    • route
    • ipv4-forwarding
  • traceroute: test and show route to system
• Daemons
  
  • /usr/sbin/in.routed
    
    • RIPv1
    • RIPv2
    • RDISC
• Files
  • /etc/defaultrouter: default route for static routing
  • /etc/gateways: in.routed configuration file
  • /etc/routing.conf: routeadm persistent state. From Solaris 10 8/7 this information moves to SMF.
  • /etc/inet/static.routes: route command persistent state (subject to change)