frage zu subnetting

[fenster]

hallo

danke funzt schon

 Destination          Source           Gateway          Intf  Mtrc
239.255.255.250/32 192.168.100.19/32  192.168.100.19*      eth0   1
  192.168.100.0/24  192.168.100.0/24  192.168.100.19       eth0   1
 192.168.100.19/32         0.0.0.0/0  192.168.100.19       eth0   0
   80.123.17.74/32         0.0.0.0/0    80.123.17.74        PPP   0
     10.0.0.138/32         0.0.0.0/0      10.0.0.138       eth0   0
      127.0.0.1/32         0.0.0.0/0       127.0.0.1       loop   0
  192.168.100.0/24         0.0.0.0/0  192.168.100.19       eth0   1
        10.0.0.0/8         0.0.0.0/0      10.0.0.138       eth0   1
         0.0.0.0/0      10.0.0.253/0    80.123.17.74        PPP   1