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Kirit_Patel_521's avatar
Kirit_Patel_521
Icon for Nimbostratus rankNimbostratus
Nov 11, 2014

Inbound ftp stopped working after upgraded LTM to 11.4.1 code from 9.4.8 code .

Folks   I am in a situation where inbound ftp is not working for clients after upgrading from 9.4.8 to 11.4.1 We are using standard ftp profile. Clients when they are try to get multiple files the...
shaggy's avatar
shaggy
Icon for Nimbostratus rankNimbostratus
Nov 11, 2014

In the virtual server configuration, try changing "source port" to "preserve strict"

 

I've seen this issue before, but unfortunately it has been long enough that I only vaguely remember a possible solution and not the reasoning behind it. F5 has some warnings for this setting - https://support.f5.com/kb/en-us/solutions/public/11000/000/sol11003.html

 

shaggy's avatar
shaggy
Icon for Nimbostratus rankNimbostratus
Nov 11, 2014
heh, that's a huge difference in code level - two major revisions, plus v9 was f5's first non-v4 release. can you list your vs, ftp profile, and tcp profile configs? is this active or passive ftp? Are you using default ftp ports on the server-side (20/21)?