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Altera_Forum's avatar
Altera_Forum
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16 years ago

telnetd all ports in use...?

Hello friends,

Whenever I start 'inetd &', I try to access the board through telnet, and the answer I get is all ports are in use. The board has just been powered up. The OS has just booted.

I added telnetd from Network Applications and ticked the option "telnet does not use openpty()". But I have also tried with this option unselected, still the same result.

Any ideas will be appreciated.

Thank you very much

Francisco

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hello Again,

    I checked http://www.alteraforum.com/forum/showthread.php?t=16296

    this thread and checked my configuration for the conditions hippo mentioned. They were as mentioned there.

    I am trying to telnet the DE2 board with a Desktop computer. Perhaps I am configuring a wrong network. When I do route -n in the computer, I get: 

    
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.48.40.0      0.0.0.0         255.255.248.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eth0
0.0.0.0         10.48.47.252    0.0.0.0         UG    0      0        0 eth0

    so, in the OS, I do 

    
Command: ifconfig eth0 hw ether 00:07:ed:0a:03:29
Command: ifconfig eth0 10.48.46.90
eth0: link down
Command: route add default gw 10.48.47.252 netmask 255.255.248.0
Command: inetd &
Command: mkdir /logs
Command: touch /logs/buffer1.txt
Command: touch /logs/buffer2.txt
Command:
Command: cat /etc/motd
Welcome to
          ____ _  _
         /  __| ||_|
    _   _| |  | | _ ____  _   _  _  _
   | | | | |  | || |  _ \| | | |\ \/ /
   | |_| | |__| || | | | | |_| |/    
   |  ___\____|_||_|_| |_|\____|\_/\_/
   | |
   |_|
For further information check:
http://www.uclinux.org/
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/> eth0: link up, 100Mbps, full-duplex, lpa 0xC3E1
execve failed!

    but when I try to link to the board, I get; 

    
pancho@holaamigos:~$ telnet 10.48.46.90
Trying 10.48.46.90...
Connected to 10.48.46.90.
Escape character is '^]'.
telnetd: All network ports in use.
Connection closed by foreign host.

    I don't know if its a mistake of network configuration, because I was using the same applications on another network and they worked correctly.

    Thank you all

    Francisco
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Please remove the network startup in rc temporarily. Please try them in command line one by one to find out the execve problem.

    - Hippo
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hello hippo,

    I tried your suggestion. When I ran every command manually, none of them seemed to fail. However, when trying to telnet the board still couldn't. I figured a way to manipulate the board using files as 'flags' via ftp, which was already working.

    Thanks for you help

    Francisco
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hello,

    does anybody have running telnetd on uClinux ? I have the same error like Francesco - telnetd: All network ports in use - so I run the inetd & from command line, ftp run ok but telnet not.

    Has somebody experiences with sshd ? It is possible to compile, but when I run sshd & the shell kill this process after few seconds ...

    Thanks for your answer.

    Jan Naceradsky, Czech Republic