EXOS TFTP put to Netsight failing due to incorrect forward slash

[Anonymous]

Whenever I submit the command:

tftp put xxx.xxx.xxx.xxx vr "VR-Default" internal-memory
show_tech.log.gz

It fails with the following response:

Uploading show_tech.log.gz to xxx.xxx.xxx.xxx ... failed!

Error: (2) unable open file

The message in Netsight syslog is as follows:

127.0.0.1 open() file=C:\tftpboot/show_tech.log.gz client
session: xxx.xxx.xxx.xxx:57941



So my guess is with Netsight being windows based using a \ (backslash) and EXOS being Linux based and using a / (Forward slash), this is where the problem comes in.

Can't see how to correct this in EXOS as specifying a forward slash gives an error, and I don't know if there is a way to correct within the TFTP server in Netsight.

Have also tried the following:

X460.2 # tftp xxx.xxx.xxx.xxx -v "VR-Default" -p -l internal-memory show_tech.log.gz

Uploading show_tech.log.gz to xxx.xxx.xxx.xxx... failed!
Error: (2) unable open file

...

X460.3 # tftp xxx.xxx.xxx.xxx -v "VR-Default" -p -l internal-memory show_tech.log.gz -r show_tech.log.gz

Uploading show_tech.log.gz to xxx.xxx.xxx.xxx... failed!

Error: (2) unable open file

...

X460.4 # tftp xxx.xxx.xxx.xxx -v "VR-Default" -p -l internal-memory show_tech.log.gz -r \show_tech.log.gz

Error: Illegal filename (\show_tech.log.gz)

ExtremeXOS version 15.3.1.4

Netsight version 6.2.0.199

[Bill_Stritzinge]

Martin,

Thanks for the information.. I have forwarded it directly to the project manager for Netsight... will let you know when I hear back.

Bill

[Drew_C]

Hi Martin,
I think you're right - the slash seems to be causing the problem. It sounds like this one will need to come to GTAC so that engineering can take a look.
Are you able to open a case on this? You can link this thread in your problem description to help with the explanation.

Thanks,
-Drew

[dflouret]

Martin,

The problem must be in NetSight. A transfer to 3CDaemon TFTP server (which also runs under Windows) ended successfully.

I also did a capture of the transfer and the filename sent does not include a slash.

You should open a case in GTAC.

[Anonymous]

Hi Bill,

Thanks for getting back to me and for the info.

Had unfortunately already tried that but it still didn't work, for the same reason........

If you look at my internal memory you can see the show_tech.log.gz file listed

X460.3 # ls internal-memory

-rwxr-xr-x 1 root 0 62357 Apr 22 10:51 show_tech.log.gz

-rwxr-xr-x 1 root 0 161911 Apr 22 10:51 trace.devmgr.1421

-rwxr-xr-x 1 root 0 592 Apr 22 10:51 trace.fdb.1443

-rwxr-xr-x 1 root 0 608 Apr 22 10:50 trace.mcmgr.1490

-rwxr-xr-x 1 root 0 143117 Apr 22 10:51 trace.nodemgr.1425

-rwxr-xr-x 1 root 0 600 Apr 22 10:51 trace.rip.1497

-rwxr-xr-x 1 root 0 608 Apr 22 10:51 trace.rtmgr.1482

-rwxr-xr-x 1 root 0 1034 Apr 22 10:45 trace.vlan.1441



If you run the upload debug command you get the following:



X460.2 # upload debug xxx.xxx.xxx.xxx vr "VR-Default"

Do you want to run show tech logto file first? (y/N) Yes

Upload debug cancelled. Please run show tech logto file now.



X460.4 # upload debug xxx.xxx.xxx.xxx vr "VR-Default"

Do you want to run show tech logto file first? (y/N) No

.......................................................................................................

Error: tftp: server error: (2) unable open file



Netsight gives the following error:



Upload Engineering to hostname ip address xxx.xxx.xxx.xxx VR VR-Default

Upload Engineering failed. Failed to tftp intern tarball to server



In order to find out more what is going on I enabled the debug mode on the TFTP server. This is done by editing the nstftpd.cfg file in the Netsight services file. The option you can have are as follows:

Usage : tftpd [-v][-c][-d dirname][-p pidfilename][-trace][-debug]

-v print version and exit

-c allow tftpd to create uploaded files if they do not already exist.

-d use the specified dirname as the base where tftpd will look to read/store files

-p use the specified pid file name to store the pid of the process

-fg run tftpd in the foreground rather than



So I changed the:

-d "c:\tftpboot"

to

-d "c:\tftpboot" -debug



Now the syslog on Netsight shows the following issue:

Netsight 127.0.0.1 open() file=C:\tftpboot/X460_I_04230955.tgz client session: xxx.xxx.xxx.xxx:38436

Netsight 127.0.0.1 Sending error (2) -- unable open file to client session: xxx.xxx.xxx.xxx:38436

Netsight 127.0.0.1 Retrieving session client session: xxx.xxx.xxx.xxx:38436

Upload Engineering failed. Failed to tftp intern tarball to server

Received write request file=X460_I_04230955.tgz mode=octet client session: xxx.xxx.xxx.xxx:38436

So two things about that don't seem right, the first is the slash is in the wrong direction again and the file is "X460_I_04230955.tgz", instead of" show_tech.log.gz" that was created by the show tech command?

Also if I run the following:

X460.6 # upload configuration xxx.xxx.xxx.xxx primary.cfg vr "VR-Default"

Uploading primary.cfg to xxx.xxx.xxx.xxx ... failed!

Error: (2) unable open file



Netsight reports the same problem with the slash in the wrong direction:



Netsight 127.0.0.1 open() file=C:\tftpboot/primary.cfg client session: xxx.xxx.xxx.xxx:51367



At first I thought the issue might be a firewall problem, but the permission for TFTP has been added and the firewall logs are not showing a deny.

The other thought was that there might be a permissions issue on the c:\tftpboot folder, which I am still looking into but at the moment the slash seems to be the most obvious issue.

So as you can see no matter what command I use the slash is always in the wrong direct for use on Netsight / windows tftp server?

[Bill_Stritzinge]

Martin,

You can also try the following... Should do what you are looking for....

upload debug [hostname | ipaddress] {{vr} vr_name} Description

Uploads debug information files to a tftp server. On a platform that has both primary and backup

MSMs/MMs, debug information files are uploaded from both the backup and primary MSMs/MMs.

Syntax Description

hostname Specifies the host name of the TFTP server to which the debug files will be

uploaded to.

ipaddress Specifies the IP address of the TFTP server to which the debug files will be

uploaded to.

vr_name Specifies the name of the virtual router.

Default

By default, the virtual router VR-Mgmt will be used.