[c-nsp] Cisco IOS support for blksize / rfc 2348

[Church, Charles]

For what it's worth, I've found that the 3Com TFTP server for Windows (
http://support.3com.com/software/3cdv2r10.zip ) seems to support the
large file sizes and works with the biggest files on the Sup720s.  It
seems that other TFTP servers like Pumpkin that claim to work with large
files don't work with Cisco.  Probably for that reason.

Chuck 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Saku Ytti
Sent: Monday, November 05, 2007 9:04 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Cisco IOS support for blksize / rfc 2348


On (2007-11-05 15:52 -0700), Clinton Work wrote:

> I'm trying to determine when blksize / rfc 2348 support was added to 
> several Cisco IOS releases.  It might have been added with defect 
> CSCds46280, but the bug report doesn't provide any details.   Support 
> for tftp RFC2348 is required to transfer images over 32MB. 

tftp seems to be in some bizarro world, as actually typical way to
implement >32MB is just to roll over block#, which isn't documented
in any standard that I know off, and that's why correctly working
tftp servers, such as atftpd won't work with larger than 32MB files
in those servers.
Cisco also does that, not sure if IOS does though. It's especially
evil that some cisco product do not support any other file transfer
protocol and still have >32MB images and also do not implement any
standard compliant way to actually transfer >32MB images to them.

-- 
  ++ytti
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