Or just for fun, you can use two routers and create an aux-to-aux tunnel over ssh/telnet, so you can use the serial port on your PC as if the device was local to you ;-)
-- deejay > -----Original Message----- > From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp- > boun...@puck.nether.net] On Behalf Of Peter Rathlev > Sent: Wednesday, December 15, 2010 9:00 AM > To: cisco-nsp > Subject: [c-nsp] XMODEM transfer over telnet/ssh, any chance? > > Anybody know of a way to make XMODEM work over telnet/ssh? For a Sup720 > stuck in ROMMON that is. I know it's almost always much faster to just > get a CF card with the right image, but this problem has me > interested. :-) > > I'm connecting remotely ("reverse telnet") to the AUX port of some 1841. > The AUX port is connected to the console port of a Sup720, and this > Sup720 is placed in ROMMON. > > The connection works fine for "telnet" purposes, no problems there. But > when I try to initiate an XMODEM transfer, every block of data is > NAK'ed. > > I'm using expect to connect and start the transfer, letting lszrz do the > transfer itself. The two (ROMMON/lszrz) can see each other fine. Console > initiates the transfer correctly with the first NAK after some time, but > every block that lszrz then sends is also NAK'ed. > > I suspect the path isn't 8-bit clean and some kind of translation screws > things up. I just can't see why that *has* to be. > > List of things I tried with no luck: > > 1) Read http://puck.nether.net/pipermail/cisco-nsp/2005-July/022358.html > > 2) Probably all combinations of Sup720 flags and lszrz flags. In my head > it should work with "xmodem -c <file.bin>" and "sx -q <file.bin>", > but it doesn't. > > 3) Many many AUX line options: "telnet transparent", "escape-character > NONE", all to no avail. > > 4) Many combinations of flags for telnet, "-8", "-e ''", "-E", "-L", you > name it... > > 5) SSH as transport instead of telnet. > > 6) Several combinations of "non default" line parameters: The Sup720 > should use 8 data bits, 1 stop bit and no parity bits. > > Should I just give up? Even though this would be way cool to make > work? :-D > > -- > Peter > > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/