Re: FTP BIN on V5R2

[Scott Klement <klemscot@xxxxxxxxxxxx>]

The only difference between binary and ASCII is whether or not the
data is "changed to match local conventions" during transfer.   In
binary mode, no changes are made the bytes are transmitted and received
without modification.

If ASCII works, it seems very unlikely that binary (which is much simpler)
would have problems.

Instead, I think this problem sounds like the standard NAT/firewall
problem with FTP where the control session (since it's a standard TCP/IP
client to server connection) works, but the data connections (being
negotiated server to client sessions) fail.

Is it possible that whomever told you of this problem is instead having
success with passive mode and not with standard ("active") mode?  Or
vice-versa?

Or, does this person mean that he can see things like login prompts,
response messages, etc, but cannot see things like directory listings
or file downloads?

That's all I can think of, anyway...


On Wed, 27 Aug 2003 shannonjano@xxxxxxxxxxxxxxx wrote:

> Has anyone experienced a problem with V5R2 and FTP?  Particuarly the use of
> the BINARY command?  We have a client who just went to V5R2 and can FTP just
> fine, apparently, in ASCII mode, but when attempting to use the BIN command,
> the FTP session just hangs.
>
> I'm getting this information second-hand so there may be something else
> going on there that I haven't heard about...but this is what I know.
>
> Anyone seen anything like this yet?
>