[c-nsp] 2911 Terminal Server 8bits character problem

Chubby chubby_cripth at yahoo.com
Thu Mar 24 22:11:22 EDT 2011


Hi Andrew,

This is a reverse telnet session that communicate using Serial <> TCP

0xFF is part of data payload, and I can not find a way to double the content of payload ie: "0xFF 0xFF"

The config is:
Line 0/0/0
 No exec
 Exec-timeout 0 0
 Data-character-bits 8
 Exec-character-bit 8
 Transport input all
 Telnet transparent
 Telnet refuse-negotiation
!

Best Regards,

Ranokarno
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On Mar 25, 2011, at 2:48 AM, Andrew Gray <4457 at blargh.com> wrote:

> This sounds like you're telnet'ing in with something other than telnet - 0xFF is the Telnet escape character - it's expecting another control code after 0xFF to negotiate options and such.  To send a single 0xFF onward, you need to double it, i.e. 0xFF 0xFF. 
> Rano Karno writes: 
>> the issue is whenever server make a session to terminal host and sending "FF" hexa, it seem the router did not transmit it to terminal host, thus make the system hang.
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