Hello. I'm using Putty 0.63 to access all corporate routers (28xx, 29xx, 39xx, different IOSes) and stumbled into one common problem: if i launch some long running command like ping with many repeats or file operation then it runs for about 50 seconds and then just stops - nothing happening, no input from router, ping stops, file transfer stops etc.
If i hit any key it resumes! Though file operations get timed out if i notice too late.
Using other ssh clients do not have such problems. Also if i connect to Linux machine and then ssh from there, there is no such problem too.
0.64 - same issue
I cant say who's bug it is. I wiresharked, no traffic comes from cisco when it stops. tcp stack sends last ACK to packet from router and then... nothing else.
But why there is no such problem when using linux ssh client (openssh) ?
3945E IOS 15.3(3)M3 - has problem
3925E IOS 15.1(4)M7 - has problem
3750 IOS 12.2(55)SE8 - no problem
1721 IOS 12.4(16) - no problem
2811 IOS 12.4(24)T8 - no problem
smells like problem is with modern IOSes. Can someone check their 15.1, 15.3 routers?
I could find bug but not exaclty related to the putty version and IOS u are using.
|Known Affected Releases:|
I've seen it, but it is different.
In my case session is not closed and output resumes on input from my side.
I would blame putty, but, wiresharks indicates what it is IOS stops sending data.