Default Telnet Port

[Bazinga]

Hi

I have noob friend in another town with 2 dm800 on the same network and I need to give him support using telnet, I know telnet over WAN is possible but becuase there is 2 dm800 on the same network, so Im not sure How I would telnet to both boxes on the same network? or how can find out the default telnet port for dm800.

[gauloises1]

Re: Default Telnet Port

i dont know if is possible but try first to connect via teamviewer and then start telnet into your friend's pc

[duhoki]

Re: Default Telnet Port

You need to ask you friend to setup port forwarding on his router like this:

yourFriendIP.com:123 will send you to an internal ip and internal port on his nettwork. Tell him to go in to his router and do the portforwarfing.If problem just ask an i will be happy to help you out on it.

[maiklorey]

Re: Default Telnet Port

The default telnet port is 23. If you want to connect to one of the dm's of your friend, you should know their ip adresses.

You could proceed as proposed above:
1. Connect to your friends pc using teamviewer
2. Find out the IP adress of the box you want to connect to
3. Open cmd line
4. type: telnet 192.x.x.x to connect to the box

[digicon]

Re: Default Telnet Port

As posted the default Telnet port is 23 but this can be changed and can be accessed outside the network by port forwarding in your friends router as normal.

[rizwan]

Re: Default Telnet Port

Do you consider that port forwarding is safe ? Or can't be hacked ?

[gianni253]

Re: Default Telnet Port

Port forwarding is ok but telnet is highly unsafe (uses unencrypted protocol).
If if just want telnet you have to change listen port on one of the two boxes and then set up the two rules of port forwarding on the router.

My advice is to use SSH:
Install dropbear on your boxes - or simply on the remote router, if it is supported (DD-Wrt, OpenWrt etc.) - and use a ssh client on your side (winscp, tunnelier, etc.).
Much safer and versatile, you will have total control, even using web interface.

[duhoki]

Re: Default Telnet Port

If you are awear of security of wan telnet and port forwarding, i will advice you to just remote controll(team viewer) on a computer that is on the network you want to preform telnet on.

[Bazinga]

Re: Default Telnet Port

port forwarding is done,

but normally I would telnet without a port number,
if I telnet to a wan IP with port number, is it done in this format

telnet 123.123.123:1235
telnet wan-iport

because I tried but doesn't work.

[gianni253]

Re: Default Telnet Port

port forwarding is done,

but normally I would telnet without a port number,
if I telnet to a wan IP with port number, is it done in this format

telnet 123.123.123:1235
telnet wan-iport

because I tried but doesn't work.

telnet myhost.***.com
is equivalent to:
telnet myhost.***.com 23
because default port for telnet is 23

If you want to telnet on port 49159:
telnet myhost.***.com 49159

For the second box you'd better use a port in the interval 49152-65535 (non assigned ports). Not mandatory, but more "aesthetic".

[Bazinga]

Re: Default Telnet Port

telnet myhost.***.com
is equivalent to:
telnet myhost.***.com 23
because default port for telnet is 23

If you want to telnet on port 49159:
telnet myhost.***.com 49159

For the second box you'd better use a port in the interval 49152-65535 (non assigned ports). Not mandatory, but more "aesthetic".

so just to clarify, when I telnet, I don't need to put the colon symbol ( : ) between the ip/host and port number?, just space?

[gianni253]

Re: Default Telnet Port

so just to clarify, when I telnet, I don't need to put the colon symbol ( : ) between the ip/host and port number?, just space?

Exactly, no colon symbol, just space.

[Bazinga]

Re: Default Telnet Port

and finally I know some basic telnet commands, but is there a full list of commands I could use for the dreambox?

and also does such a software exist with graphical user interface with pre-programmed telnet commands for dreambox?

[gianni253]

Re: Default Telnet Port

I attach for you a small pdf with busybox commands.
It should be at least 95% compatible with your busybox implementation.

[coolwar]

Re: Default Telnet Port

Do you consider that port forwarding is safe ?