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Unable to FTP

We implement an active/passive F5 BigIP last weekend for 2 webservers, since then a daily FTP Job on the webserver to offload the log files has failed, nothing else has changed in the environment, same firewall, same servers, these were previously connected to Kemp LB's (through the kemps it worked fine) and we replaced the Kemp with F5's. The firmware version is 4.2.10 these are no longer supported via F5.

Thanks in advance,
Bob Smith
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bobs6140
Asked:
bobs6140
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1 Solution
 
giltjrCommented:
Are the web servers the FTP clients, or the ftp servers?

If the web servers are the ftp servers, I am assuming then the clients must go through the F5 to get to to webservers.  How is the F5 configured to allow this?
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bobs6140Author Commented:
Sorry, they are client, use command line MS FTP to send files out bound.
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JFrederick29Commented:
Is the F5 the web servers default gateway or is the Firewall?  In your setup, is it possible to set the "outside/Internet" Firewall as their default gateway and use SNAT on the F5 so web traffic to the web servers returns through the F5 but all other outbound traffic doesn't (unless you want it to)...
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bobs6140Author Commented:
Yes the F5 is the default gate for the web servers, we have NAT setup, had issue with SNAT, client wants to keep the NAT, (comment: probably why I had issue with SNAT - I was using the F5 as the gate  - no the FW - is this the normal config using SNAT) so we have to keep the NAT.
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JFrederick29Commented:
I personally like having outbound traffic that the F5 doesn't need to see go straight out the Firewall myself and use SNAT to return the inbound web traffic to the F5.  If you want the F5 to be the gateway, you need to make sure you have a virtual server for the outbound traffic.
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bobs6140Author Commented:
Ok I have virtual servers setup for the web servers (port 80 http) but not for FTP, so I should setup a virtual server for FTP. Thank you very much.
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JFrederick29Commented:
Or an all encompassing VS for all outbound traffic (all ports).
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bobs6140Author Commented:
Not sure how to do that, the drop down for the pool only list like ftp https etc no all
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giltjrCommented:
I would follow JFrederick29 suggestion of a single VS for all outbound traffic that you route/send through the F5.

The only time I would use a VS for ftp is if I was going to have inbound FTP.
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JFrederick29Commented:
I believe you can do a Layer3 or IP Forwarding rule so it simply routes traffic...
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bobs6140Author Commented:
Going to do some testing, will be back shortly. TYVM
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bobs6140Author Commented:
Created a VS and still  I am able to login to FTP but as soon as issue a command it disconnects, on the FW allow all out bound is set, on LB not sure how to set that. F5 has a number reports about this but unable to find any info on how to fix. Will do more testing.

Thanks again for the response,
Bob Smith
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JFrederick29Commented:
Try doing passive FTP.
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bobs6140Author Commented:
I did try before this last change will try again, after I connect I switch to passive and the same, it disconnects, I will test again this morning. Do you know of a passive command line client I can use on windows 2003.

Thank you again,
Bob Smith
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JFrederick29Commented:
Not sure about a command line client.  You can use Internet Explorer just for testing to see if it is an active/passive issue.
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