Actually this line seems to solve
snoop -V -x host myhost and port 5858
As I understand -v put the protocols in order so is ETHER, then ip then tcp (the output is incomplete, too long)
snoop -d net0 -v
Using device net0 (promiscuous mode)
ETHER: ----- Ether Header -----
ETHER: .........
ETHER: Ethertype = 0800 (IP)
ETHER:
IP: ----- IP Header -----
IP:
IP: Version = 4
IP: Header length = 20 bytes
IP: Type of service = 0x48
IP: .......
TCP: ----- TCP Header -----
TCP:
TCP: Source port = 22
TCP: Destination port = 55934
TCP: Sequence number = 52486020
TCP: Acknowledgement number = 676130111
TCP: Data offset = 20 bytes
TCP: Flags = 0x18
TCP: 0... .... = No ECN congestion window reduced
TCP: .0.. .... = No ECN echo
TCP: ..0. .... = No urgent pointer
TCP: ...1 .... = Acknowledgement