Serial Line Internet Protocol definition communications, protocol
(SLIP) Software allowing the Internet Protocol
(IP), normally used on Ethernet
, to be used over a serial line
, e.g. an EIA-232 serial port
connected to a modem
. It is defined in RFC
SLIP modifies a standard Internet datagram
by appending a special SLIP END character to it, which allows datagrams to be distinguished as separate. SLIP requires a port configuration of 8 data bits, no parity
, and EIA
or hardware flow control. SLIP does not provide error detection, being reliant on other high-layer protocols for this. Over a particularly error-prone dial-up
link therefore, SLIP on its own would not be satisfactory.
A SLIP connection needs to have its IP address
configuration set each time before it is established whereas Point-to-Point Protocol
(PPP) can determine it automatically once it has started.
See also SLiRP