S_N_D.8
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- SET_NET_DEFAULT(8) Minix Programmer's Manual SET_NET_DEFAULT(8)
- NAME
- s_n_d, set_net_default - select the default TCP/IP network
- SYNOPSIS
- set_net_default: not found
- DESCRIPTION
- This manual page is here because so many others refer to it. The
- set_net_default command does not exist under standard Minix, because the
- TCP/IP server only supports one network. The server under Minix-vmd
- supports four different networks, that can each be chosen as the default
- network.
- The TCP/IP library and commands do have a notion about a "default
- network" however, because the code is shared between the Minix versions.
- So if you want to venture into network programming then you should know
- about the devices and environment variables mentioned below to make your
- program compatible. (Especially since there is a plan to upgrade the
- TCP/IP server for standard Minix.)
- Options and environment to change the default
- Many TCP/IP programs implement the following options and environment
- variables to change the default devices set by set_net_default. The
- options are only implemented for low level programs where it makes sense
- to name a network device. The environment variables are used in all
- code. You can run a process and all its children connected to a
- different network by setting four environment variables.
- ETH_DEVICE=device
- -E device
- Device to use as raw ethernet device instead of the default
- /dev/eth.
- PSIP_DEVICE=device
- -P device
- Pseudo IP device to use instead of /dev/psip.
- IP_DEVICE=device
- -I device
- IP device to use instead of /dev/ip.
- TCP_DEVICE=device
- -T device
- TCP device to use.
- UDP_DEVICE=device
- -U device
- UDP device to use.
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- SET_NET_DEFAULT(8) Minix Programmer's Manual SET_NET_DEFAULT(8)
- FILES
- /dev/eth[01] First and second raw ethernet.
- /dev/psip[01] First and second Pseudo IP network.
- /dev/ip[0123] IP devices for two ethernets and two Pseudo IP
- networks.
- /dev/tcp[0123] TCP devices for same four networks.
- /dev/udp[0123] UDP devices.
- /dev/eth, /dev/psip, /dev/ip, /dev/tcp, /dev/udp
- Devices for the default network, links to the devices
- above. Eth is only present if ethernet is the default,
- psip only for pseudo IP.
- SEE ALSO
- ip(4), boot(8).
- AUTHOR
- Kees J. Bot (kjb@cs.vu.nl)
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