4 ms·

Doesn't IPSec operate at the same level as TCP/UDP? TCP is protocol 6, UDP protocol 17; while IPsec uses protocol 50 for ESP (encrypted) and 51 for AH (authent

Doesn't IPSec operate at the same level as TCP/UDP? TCP is protocol 6, UDP protocol 17; while IPsec uses protocol 50 for ESP (encrypted) and 51 for AH (authenticated).

amaccuish 6y ago
IPSEC can operate in both modes, either as a pure IP protocol or in "nat traversal" mode, over IIRC udp 500 and 4500