It needs to be disabled for the MS printing service. Today we realized again problems and it wasn't working anymore (not sure why this happens today).īut we found the critical option on the LB, it's the Address Translation, which is enabled by default. I have to make a little correction on my second last post. the result, that only listing is working is the same using nPath or SNAT. So can someone explain, why nPath is technical required for MS print servers? And does anyone has an additional idea, why it's not working for me? Btw. From a technical point of view nPath or having SNAT enabled should be the same, only difference with SNAT you have one additional hop for the response. Normally nPath routing will only be used if you have a huge amount of outgoing server traffic, which should not go through the BIG-IP (to save resources and internal throughput). That's why we removed it again.īasically I'm also wondering why nPath routing is necessary at all. With setting the Metric for the loopback to 2 nothing was working, also ping monitoring from the LB to the print server was red then. Also the two mentioned Registry tweaks were implemented.īut we still only get the listing working, nothing more. I'm also fighting with MS print servers behind the BIG-IPs.īased on the two Threads here in the Forum we configured nPath as described and also configured a loopback on the print servers with the VS IP-address. Restart the computer, and the server will then respond to any of the names you listed. Then create the OptionalNames value, you can enter a list of names. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters, Quit Registry Editor, and then restart your computer.Ĭonfigure Optional Names (the DNS Name of the Virtual Server) In the Value data box, type 1, and then click OK.ħ. Right-click DisableLoopbackCheck, and then click Modify.Ħ. Type DisableLoopbackCheck, and then press ENTER.ĥ. Right-click Lsa, point to New, and then click DWORD Value.Ĥ. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsaģ. In Registry Editor, locate and then click the following registry key: Click Start, click Run, type regedit, and then click OK.Ģ. On the Edit menu, click Add Value, and then add the following registry value:ġ. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters Locate and click the following key in the registry: Must Configure a Loopback Adapter with IP of virtual server on all nodes Health Monitor (TCP port 515 only, Interval 10 seconds, Timeout 31 seconds) No SNAT, address translation, or port translationįastL4 Print Protocol proile (Loose Close Enabled, TCP Close Timeout 51 seconds)ĭefault Persistence Profile is Source Address Performance Layer 4 Virtual Server with Npath Routing Separate physical disk for spooler and swap file Here are my rough notes for a W2K print server environment.Configuring Windows Printing using Big-IP
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