[rancid] Rancid submits random characters after logon - causes config read failure

[Per-Olof Olsson]

Hello

Have someone tested to extend the time, device and tty driver have to negotiate
window size at login, before expect start to analyze text?

Seems to work if I use "sleep 3"

*** hlogin_ORG  2014-09-12 21:38:09.543395741 +0200
--- hlogin      2014-09-12 21:39:58.679120629 +0200
...
***************
*** 361,367 ****
             send_user "\nError: unknown connection method: $prog\n"
             return 1
         }
!       sleep 0.3

         # This helps cleanup each expect clause.
         expect_after {
--- 404,410 ----
             send_user "\nError: unknown connection method: $prog\n"
             return 1
         }
!       sleep 3

         # This helps cleanup each expect clause.
         expect_after {
***************
...

clogin to HP-switches...
Anyhow, tests using "sleep 3" seems to eliminate window size echo, even for clogin to HPs.


/Peo


Neil Arnold wrote 2014-09-12 17:03:
> Hi Jon,
>
> Ok, that makes sense. I've tried the following:
>
> TERM="" hlogin 10.100.20.149
> Result: Logged in but can't issue any command and the following displayed in the console:  ^[[36;116R
>
> TERM="" clogin 10.100.20.149
> Result: Log in successful but  ^[[36;116R is automatically issued to the switch (different to the original string but still stalls
> the config grab)
>
>
> On 12 September 2014 15:56, Jon Lewis <jlewis at lewis.org <mailto:jlewis at lewis.org>> wrote:
>
>     With bash being my shell, I've just been doing TERM="" before using clogin on aristas.  After seeing heasley's response, I did
>     a little testing, and vt100 seems to work as well.  My native TERM was "screen" since I like to use screen, it results in
>     display similar to what you posted and an "n" spit out as if typed.
>
>
>     On Fri, 12 Sep 2014, Neil Arnold wrote:
>
>         Hi Jethro, I've tried the hlogon too. No luck I'm afraid.
>
>         John, this sounds like it could be the solution as the characters do look
>         like terminal output. Can you explain how I would go about clearing the
>         TERM environment and if this works, I'm assuming I would have to make a
>         seperate cron job running clogin with these new parameters just for these
>         problem switches?
>
>         Thanks again for you help with this.
>
>
>         On 12 September 2014 13:03, Jon Lewis <jlewis at lewis.org <mailto:jlewis at lewis.org>> wrote:
>
>             On Fri, 12 Sep 2014, Neil Arnold wrote:
>
>               Hi,
>
>
>                 I've got an issue with 3 HP Procurve switches. All are running a recent
>                 firmware version. The problem is that no config is being pulled from 3 HP
>                 switches. in my network, the others give up their config just fine. I've
>                 discovered the reason but I'm unsure of how to fix it.
>                 The issue is caused because rancid is issuing the following command to the
>                 switch after it logs on: ^[[46;148R
>
>                 I can see this by running /bin/clogin 10.100.20.149 and seeing that I get
>                 dropped to the following:
>
>                 HP_SWITCH_1# ^[[46;148R
>                 HP_SWITCH_1#
>
>                 So Rancid is issuing the manager username and password and then issuing
>                 ^[[46;148R which the switch doesn't understand, Rancid, having not
>                 received
>
>
>             I have similar problems with clogin and arista gear.  In this case, it's
>             solved by clearing the TERM environment variable before running clogin.
>
>             ------------------------------__------------------------------__----------
>               Jon Lewis, MCP :)           |  I route
>                                           |  therefore you are
>             _________ http://www.lewis.org/~jlewis/__pgp <http://www.lewis.org/~jlewis/pgp> for PGP public key_________
>
>
>
>     ------------------------------__------------------------------__----------
>       Jon Lewis, MCP :)           |  I route
>                                   |  therefore you are
>     _________ http://www.lewis.org/~jlewis/__pgp <http://www.lewis.org/~jlewis/pgp> for PGP public key_________
>
>
>
>
> _______________________________________________
> Rancid-discuss mailing list
> Rancid-discuss at shrubbery.net
> http://www.shrubbery.net/mailman/listinfo/rancid-discuss
>