On Wed, Oct 5, 2022 at 11:15 AM Mark Fanara via curl-library
wrote:
> The problem turned out to be the fact that an upstream device was sending
> ICMP ‘fragmentation needed’ back to me with a MTU next hop value < 576. My
> newer OS apparently discarded them because of the next hop value. I was
From: curl-library On Behalf Of Dan
Fandrich via curl-library
Sent: Thursday, September 29, 2022 5:09 PM
To: libcurl development
Cc: Dan Fandrich
Subject: Re: App fails when rebuilt with newer library, but only when MTU is
small
On Thu, Sep 29, 2022 at 09: 58: 58PM +, Mark Fanara wrote
On Thu, Sep 29, 2022 at 09:58:58PM +, Mark Fanara wrote:
>> Some servers have an issue with 100-continue, and I don't recall which
>> version
>> of libcurl enabled it by default. You could try disabling it and see what
>> happens. It theoretically shouldn't have anything to do with MTU, though
> As to MTU - I of course can't increase the MTU on the fielded system, so I
> have a test system that does not include the wireless link. I have a wired
> router in place of the wireless router. I have set the MTU of the outside
> interface to value matching the wireless router. When I do th
On Thu, Sep 29, 2022 at 08:05:00PM +, Mark Fanara wrote:
> Sorry if my response is not per best practices as far as formatting goes. I
> will respond to a number of your questions here rather than inline.
See https://curl.se/mail/etiquette.html#Do_Not_Top_Post
> As to MTU - I of course can't
9, 2022 2:42 PM
To: curl-library@lists.haxx.se
Cc: Dan Fandrich
Subject: Re: App fails when rebuilt with newer library, but only when MTU is
small
On Thu, Sep 29, 2022 at 01: 58: 23PM +, Mark Fanara via curl-library wrote:
> Recently the device vendor updated the OS image to Debian Buster. T
On Thu, Sep 29, 2022 at 01:58:23PM +, Mark Fanara via curl-library wrote:
> Recently the device vendor updated the OS image to Debian Buster.
The subject of this message doesn't match this line. If it's an OS upgrade that
happened, then it's much more than just a newer libcurl that's changed.
I have an application that pushes data to an endpoint. It first gets a token
using a username/password login and then posts a form with file attached. This
application has worked for many years.
The application runs on a device running a slight variant of Debian Linux.
Recently the device vendo
