tcpdump: localhost to localhost [closed]
sudo tcpdump -i lo
Notes
- If you get
tcpdump: lo: No such device exists, get the name by coping it from the output of
sudo tcpdump -D
For example, if the output is as below you need lo0 (which is reusult 9. here:
1.en0 [Up, Running]
2.p2p0 [Up, Running]
3.awdl0 [Up, Running]
4.llw0 [Up, Running]
5.utun0 [Up, Running]
6.utun1 [Up, Running]
7.utun2 [Up, Running]
8.utun3 [Up, Running]
9.lo0 [Up, Running, Loopback]