My kneejerk reaction was that this was the usual rekeying problem, but Google suggests it's related to something else.
https://supportforums.cisco.com/discussion/12134596/xr-511-and-putty Change the following session parameter from the default of 'Auto' to 'On'. Connection...SSH...Bugs...'Chokes on PuTTYs SSH2 winadj request' HTH. On Wed, Jul 23, 2014 at 7:43 AM, <[email protected]> wrote: > Hello, > > I've got a pair of new ASR-9904 routers running IOS-XR 5.1.1 to which I've > applied SP2. Both pre and post-SP2 I keep having connectivity problems with > my normal SSH client, putty on Windows. When a lot of data is being sent at > once from the router to my client, putty will disconnect and give me the > error: "Disconnected: Server protocol violation: unexpected > SSH2_MSG_CHANNEL_FAILURE packet". I can connect to the same device all day > long using OpenSSH 6.2p2 from a FreeBSD machine with no issues. Has anyone > else seen this issue and possibly have a workaround or settings to tweak in > putty to prevent it from constantly being disconnected? FWIW, I've > experienced similar incompatibilities with putty in the past with other > network vendors, but it seems the network vendors always acknowledge the > issue on their end and fix it in future code that they release rather than > a fix for putty coming out to address it. I'm suspecting putty may be > overly strict with certain protocol compliance! > . Regardless, it would just be nice to use my tools that I manage all my > other devices with and not have to deviate to a workaround. I do have some > ASR-9001's also in production but they are still running older 4.2.3 code > and I've never had this issue on them. > > TIA > > -Vinny > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
