:~$ sudo ifdown --force p5p1 && sudo ifup --force p5p1
RTNETLINK answers: No such process
ian072@sundown:~$ ifconfig
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:894 errors:0 dropped:0 overruns:0 frame:0
          TX packets:894 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:85688 (85.6 KB)  TX bytes:85688 (85.6 KB)

p3p1      Link encap:Ethernet  HWaddr d0:50:99:7d:26:6b  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::d250:99ff:fe7d:266b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7499 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6087 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4758896 (4.7 MB)  TX bytes:602940 (602.9 KB)

p5p1      Link encap:Ethernet  HWaddr 48:ee:0c:bc:01:99  
          inet addr:10.0.0.1  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::4aee:cff:febc:199/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:149 errors:0 dropped:0 overruns:0 frame:0
          TX packets:577 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:9244 (9.2 KB)  TX bytes:33730 (33.7 KB)