NAME
isotptun - manual page for isotptun 2023.03-1
SYNOPSIS
isotptun [options] <CAN interface>
DESCRIPTION
isotptun - IP over CAN ISO-TP (ISO15765-2) tunnel / proof-of-concept.
This program creates a Linux tunnel netdevice 'ctunX' and transfers the ethernet frames inside ISO15765-2 (unreliable) datagrams on CAN.
OPTIONS
- -s <can_id>
-
(source can_id. Use 8 digits for extended IDs)
- -d <can_id>
-
(destination can_id. Use 8 digits for extended IDs)
- -n <name>
-
(name of created IP netdevice. Default: 'ctun%d')
- -x <addr>[:<rxaddr>]
-
(extended addressing / opt. separate rxaddr)
- -L <mtu>:<tx_dl>:<tx_flags>
-
(link layer options for CAN FD)
- -p [tx]:[rx]
-
(set and enable tx/rx padding bytes)
- -P <mode>
-
(check rx padding for (l)ength (c)ontent (a)ll)
- -t <time ns>
-
(transmit time in nanosecs)
- -b <bs>
-
(blocksize. 0 = off)
- -m <val>
-
(STmin in ms/ns. See spec.)
- -w <num>
-
(max. wait frame transmissions.)
- -D
-
(daemonize to background when tun device created)
- -h
-
(half duplex mode.)
- -v
-
(verbose mode. Print symbols for tunneled msgs.)
CAN IDs and addresses are given and expected in hexadecimal values. Use e.g. 'ifconfig ctun0 123.123.123.1 pointopoint 123.123.123.2 up' to create a point-to-point IP connection on CAN.