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- Key:
- all options within [] are optional
- usable: refers to where it can be used, ie: "command-line/config-file",
- "telnet", or "anywhere" (which means it can appear in either
- command-line/config-file or telnet).
- command-line: gives the command-line equivalent
- XXX etc.
-
-
- redir X [start RDISP] [ADDR][:DISPLAY[.SCREEN]]
- redirect a port for use with X
-
- usable: anywhere
- command-line: -X
- options:
- start RDISP tell slirp to start looking for free ports starting
- from N. eg: if N = 2, slirp will try to grab port
- 6002 then 6003 etc. this is useful for sites which
- sometimes run their own X server and you don't want
- to nab their port 6000, which they would naturally expect.
- ADDR our home ip address, or the address where the x server is
- (if you have a LAN at home to connect more than one machine
- to the net) (default 10.0.2.15 when in ~/.slirprc, the
- source IP address when in command-line)
- DISPLAY which display to redirect to (default :0)
- SCREEN which screen to redirect to (default .0)
- Example:
- redir X 10.0.2.15:0.0
- Note:
- this will print the command needed to enter into each shell from
- where you launch your X apps
- See also:
- show X
-
- show X
- show the command that needs to be given to your shell for any X port
- that has been redirected (in case you forget).
-
- usable: telnet
- command-line: NONE
- options:
- NONE
- Example:
- show X
- Note:
- this is useful if you forget the command to give to your shell for
- X redirection.
- See also:
- redir X, log start
-
- redir [once|time] [udp|tcp] PORT [to] [ADDRESS:]LPORT
- redirect host port to local port using a selected protocol.
-
- usable: anywhere
- command-line: NONE
- Options:
- once only allow one redirection [TCP only]
- time allow redirection to time out [UDP only]
- udp redirect a UDP port
- tcp redirect a TCP port [default]
- PORT port to use on host system
- ADDRESS address of your home machine [default 10.0.2.15]
- LPORT port to redirect host port to on local system
- Example:
- redir tcp 5021 to 21
- allow users to ftp to your local machine using
- your host's port 21. (ftp your.hosts.name 5021)
- Note:
- if this command is in your .slirprc file and no address is
- specified, it will assume that your local IP address is 10.0.2.15.
- If you enter the command from the slirp control telnet IP it will
- use the IP address you are accessing with.
-
- baudrate N
- controls the allocation of time to communications across
- your serial link. Higher values generally use more of
- the available bandwidth to your modem. This is _only_
- an internal control value and does _not_ change the physical
- settings for the host port or modem.
-
- usable: anywhere
- command-line: -b
- Options:
- N change baudrate to N
- Example:
- baudrate 14400
- Note:
- higher numbers generally allow better transfer rates
- for ftp sessions, but interactive sessions could become less
- responsive. the optimum value is *JUST* when ftp sessions reach
- maximum throughput, but this can be hard to find (especially on
- compressing modems) so you should choose the maximum throughput
- you would expect from your modem.
-
- special|control|host addr ADDRESS
- set ip address aliases and others for slirp.
-
- usable: anywhere
- command-line: none
- Options:
- special address set the network ip alias for slirp
- control address only allow access to slirp control
- address from ADDRESS.
- host address tell slirp the IP address of the host it's
- running on. use this only if slirp can't
- properly find the host's IP address
- Example:
- special address 10.0.3.0
- Note:
- the ADDRESS for special must end in 0 (zero) and other
- addresses are classed from this. The default special
- address is 10.0.2.0 giving the following defined IP's
- 10.0.2.0 slirp control telnet IP
- 10.0.2.1 slirp exec IP
- 10.0.2.2 slirp host alias
- 10.0.2.x add [pty]exec optional address
-
- add [pty]exec PROGRAM:[ADDRESS:]PORT
- Set program to execute on host when local machine attempts
- to connect to ADDRESS at port PORT.
-
- usable: anywhere
- command-line: none
- Options:
- exec establish binary connection to program
- in the style of inetd.
- ptyexec establish telnet connection to program
- using telnetd helper application under a
- pseudo-terminal
- PROGRAM program to exec
- ADDRESS optional address
- PORT port
- Example:
- add ptyexec csh:55
- A telnet connection to the slirp exec IP
- (default 10.0.2.1) will start and connect you
- directly to the csh program on the host.
- (telnet 10.0.2.1 55)
- add exec nntpd:10.0.2.3:119
- A program that attempts to open port 119 at
- address 10.0.2.3 will be connected to the
- nntpd program.
- Note:
- the use of the ptyexec form requires the slirp.telnetd
- helper application be available on your path. also note that
- ADDRESS must be of the form SPECIAL_ADDRESS.xx (10.0.2.xx by default)
-
- [no]compress
- force startup mode for slirp to SLIP or CSLIP. This
- overrides the default automatic mode determination.
- Command:
- nocompress start in SLIP mode
- compress start in CSLIP mode
- Options:
- NONE
- Note:
- the default method of operation generally performs
- well. You should only have to use this command if
- you find that your host and local system are failing
- synchronize the connection type.
-
- mtu N
- controls the size of the IP packets sent across the serial
- IP link. Valid values are <= 1500.
- Options:
- NONE
- Example:
- mtu 1500
- set the mtu to its largest allowable size.
- Note:
- larger values generally improve the performance of
- graphics web browsers and ftp transfers across the
- serial link, at the expense of interactive performance.
- The default value of 552 seems to be a reasonable
- compromise for connections at 14400 baud.
-
-
- shell PROGRAM
- set program to execute on EXEC IP default telnet port (23).
- It is the same as
- add ptyexec PROGRAM:23
- Options:
- NONE
- Note:
- by default slirp connects /bin/sh to the exec IP telnet
- port.
-
- help [COMMAND]
- show a brief list of available commands, or more information on
- the named command
-
-
- remove [pty]exec PROGRAM:[ADDRESS/]PORT
- reverse the effect of "add [pty]exec". see "add [pty]exec" for the
- options etc.
- Note:
- you must enter the options exactly as you entered it in add [pty]exec.
- XXX incomplete
-
- echo [on|off]
- turn echo on or off, depending on how your client behaves. "echo" by
- itself will show whether echo is currently on or off.
-
- kill N
- kill the session which has a Socket no. of N. to find the Socket no. of a particular
- session, use the "stats socket" commands. see
- "stats" below.
- Note:
- it is recommended you use "close N" instead, as this merely wipes
- out the session, whereas "close N" closes it properly, as a good
- little tcpip-emulator should :)
-
- "kill -1" shouldn't be used, it will kill the first session it finds
- with -1, which usually is the command-line connection.
-
- close N
- close the session which has a Socket no. of N. same as "kill N", but
- closes it session gracefully. see "kill N"
-
-
- stats [ip | socket | tcp | vj | udp | mbuf | tty | alltty | others? ]
- show statistics on the given argument
- Options:
- ip show ip statistics
- socket show statistics on the currently active sockets. use this
- to find out which sessions to close/kill as it will also
- show the FD of the session
- tcp show tcp statistics (packets sent/received/etc)
- udp same as tcp but for udp
- mbuf show how many mbufs were allocated, are in use, etc.
- if the modem is idle, and there are more than 1 mbufs on
- the used list, it suggests an mbuf leak
-
- [pty]exec PROGRAM
- this will execute PROGRAM, and the current command-line session will
- cease to exist, taken over by the PROGRAM. ie: when the program exits,
- you will not get the command-line back, the session will (should) close.
-
- socket [PORT,PASSWORD]
- create a Unix-domain socket and listen() for more interfaces to connect.
- This is also needed for restarting. Give the arguments PORT,PASSWORD if
- you wish to use Internet-domain sockets instead of UNIX-domain sockets.
-
- log start
- log all the startup output to the file .slirp_start.
-
- add emu SERVICE[:TYPE_OF_SERVICE] [lport:]fport
- Tell slirp to emulate SERVICE when on port lport/fport.
-
- service can be: ftp, ksh, irc, none
- type_of_service can be: throughput, lowdelay
-
- lport can be given if that service needs emulation for, say, servers.
-
- examples:
- if you wish to ftp to somewhere on port 8021, do:
-
- add emu ftp 8021
-
- if your home ftp server is on port 8021, do:
-
- add emu ftp 8021:0
-
- [NOTE: this does NOT mean if you redirect port 8021 for your ftp
- daemon, it refers the the port AT HOME at which ftpd is listening to]
-
- if you telnet somewhere on port 8000, and you wish those packets to
- go on the fastq (ie: so they have a higher priority than, say, ftp
- packets), do:
-
- add emu none:lowdelay 8000
-
- this tells slirp that any packets destined for port 8000 will not
- have any emulation, but it will be set IPTOS_LOWDELAY.
-
- dns DNS_IP
- Give this to slirp if you want to use 10.0.2.3 as an alias for DNS,
- AND slirp guesses wrong for the DNS on startup.
-
-