Link encap:Ethernet  HWaddr FC:FC:0A:00:00:07
inet addr:10.0.0.7  P-t-P:10.0.0.4 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
RX packets:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10 
Interrupt:7 Base address:0x378
-'tcpdump' Try 'usr/sbin/tcpdump -i plip0'
after some pings it should be similar to (with option -t):
chinito > capricho: icmp: echo request
capricho > chinito: icmp: echo reply