ICMP works over TCP Tunnel?

I’m learning about ligolo-Ng, which sets up a TCP/TLS tunnel so you can pivot across networks.

However, I found that you can ping hosts through this tunnel normally. UDP traffic won’t go through the tunnel, so how is an ICMP datagram is using TCP?

I’d appreciate any insight on this. I feel like I must be missing something.

As a side note,

nmap -sn <NETWORK> also works but

sudo nmap -sn <NETWORK> doesn’t (the additional checks must screw up the results)

submitted by /u/Agent-BTZ
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from hacking: security in practice https://ift.tt/Jh9qtec

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