Re: LLMNR on IBM i? -- MIDRANGE-L

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Subject: Re: LLMNR on IBM i?
From: Brian Jongekryg <bej@xxxxxxxxxx>
Date: Thu, 31 Jan 2019 16:42:15 -0600
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On 01/31/2019 3:28 PM, Rich Loeber wrote:

A client is getting faulted by an audit process over "Link-Local Multicast
Name Resolution" (LLMNR). This is a new one on me. They just want to
turn it off on the IBM i. Any suggestions on where to look for this?
Nothing much coming up on Google so far.

IBM i supports LLMNR to provide a method for the LAN console client to discover the IBM i Service Tools LAN adapter's IPv6 address. Since this is for LAN console, LLMNR operates only over the Service Tools TCP/IP stack.

There's no option to disable just LLMNR, but if the Service Tools LAN adapter is configured for IPv4 only, LLMNR will be disabled. (That is, set IP version allowed to IPV4 when configuring the Service Tools LAN adapter.)

Brian

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