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

[Rano Karno]

Hi  Scott,
First it's a big thank for your suggestion to use higher port number ie;4000+, after bringing the router to OFFLINE server, we found the 0xFF can be transmitted in/out asyn line.
After this we going back to try again in live server.i don't know why it won't work before. but since now we hav a good news, is a relief.


regards,Rano

--- On Fri, 25/3/11, Hughes, Scott GRE-MG <SHughes at GREnergy.com> wrote:

From: Hughes, Scott GRE-MG <SHughes at GREnergy.com>
Subject: Re: [c-nsp] 2911 Terminal Server 8bits character problem
To: "Chubby" <chubby_cripth at yahoo.com>
Cc: "Andrew Gray" <4457 at blargh.com>, "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
Date: Friday, 25 March, 2011, 7:21 PM

Try using tcp port 400x instead of port 200x. 


On Mar 24, 2011, at 9:17 PM, "Chubby" <chubby_cripth at yahoo.com> wrote:

> 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
> Powered by NCS
> 
> 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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> 
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