kessler@schof.colorado.edu (Andrew Kessler) (06/06/90)
I'm having a strange problem with Telnet that under certain circumstances I am losing any characters with an odd parity. Does anyone know how to set the parity on Telnet? I've checked the manual, and I can't find any reference to it. This problem exists when I use telnet over an Appletalk network connected to a GatorBox or directly with an Ethercard. What's frustrating connecting with a DecStation using their version of telnet on Ultrix everything works fine, so it's definately something to do with the mac implementation. Any help would be appreciated. Andrew Kessler kessler@boulder.colorado.edu
amanda@mermaid.intercon.com (Amanda Walker) (06/06/90)
In article <21924@boulder.Colorado.EDU>, kessler@schof.colorado.edu (Andrew Kessler) writes: > I'm having a strange problem with Telnet that under certain circumstances > I am losing any characters with an odd parity. Does anyone know how to set > the parity on Telnet? I've checked the manual, and I can't find any reference > to it. Parity is meaningless over a Telnet connection. There may exist brain-damaged TCP/IP host implementations that try to do it anyway, but if so, they are broken. > What's frustrating connecting with a DecStation using their version of telnet > on Ultrix everything works fine, so it's definately something to do with the > mac implementation. DEC's telnet may have special code in it which will strip the eighth bit off of incoming characters. This would compensate for a brain damaged host, but would also break under other circumstances (for instance, using an 8-bit character set such as DMCS or ISO 8859). -- Amanda Walker, InterCon Systems Corporation -- "If we don't succeed, then we run the risk of failure." -- Dan Quayle
DHWalker@uci.edu (David Walker) (06/12/90)
In article <266D0F46.4DEE@intercon.com> amanda@mermaid.intercon.com (Amanda Walker) writes: > Parity is meaningless over a Telnet connection. There may exist brain-damaged > TCP/IP host implementations that try to do it anyway, but if so, they are > broken. Here's an application which I don't really think is brain-damaged (and why I would like to see the ability to set the high-order bit to emulate parity)... We have a collection of dialout modems connected to a terminal server. People who want to make a call off-campus simply connect to that pool and give the AT commands for dialing. We configure both the modems and terminal server ports for "eight bits, no parity" so that any parity required by the host at the receiving end of the call can be generated directly by the user. This scheme works great as long as our user is connecting from a serial port on another terminal server or computer. A telnet client that could emulate a serial line's parity bit would allow this to work for LAN-connected computers, too. David Walker Network Services Manager UC Irvine DHWalker@uci.edu