Crate libc
Crate docs
maximum number of services provided on the same listening port
IP6 Auth Header
IP Payload Comp. Protocol
DCCP
IP6 destination option
exterior gateway protocol
encapsulation header
IP6 Encap Sec. Payload
IP6 fragmentation header
General Routing Encap.
Hop-by-hop option header
xns idp
group mgmt protocol
for compatibility
IP6 no next header
Protocol indep. multicast
pup
raw IP packet
IP6 routing header
resource reservation
SCTP
tp-4 w/ class negotiation