Interesting, and Exchange might be why it would affect SBS. I've not seen this behavior on any of our servers where IPv6 is off, but maybe we've just been lucky so far, and our Exchange is on a WS03 server. If anyone has any documentation on this, I'd love to take a look at it.
-Bonnie -----Original Message----- From: Christopher Bodnar [mailto:[email protected]] Sent: Tuesday, November 03, 2009 2:08 PM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? Funny you mention that. I've got a friend at MS who I just asked this question to, and he gave me a very similar answer. It seems internally the word is "never turn off IPv6", but publicly they don't say that except for certain applications such as Exchange 2007/2010. Chris Bodnar, MCSE Sr. Systems Engineer Infrastructure Service Delivery Distributed Systems Service Delivery - Intel Services Guardian Life Insurance Company of America Email: [email protected] Phone: 610-807-6459 Fax: 610-807-6003 -----Original Message----- From: Peter Schwarz [mailto:[email protected]] Sent: Tuesday, November 03, 2009 4:39 PM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? A Windows 2008 SBS Server hung on me on "Applying Computer Settings" last week. I contacted Microsoft Emergency Support and we determined that the problem was because I turned off IPv6. After re-enabling IPv6 the system booted up fine. The Technician insisted that if you turn off IPv6 it will cause "all sorts of problems". I asked him and his Technical Lead to substantiate the claim, but they could not. In any case, I am leaving IPv6 on in future. Peter -----Original Message----- From: Christopher Bodnar [mailto:[email protected]] Sent: Tuesday, November 03, 2009 3:48 PM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? We disable IPv6 as part of our build procedure. Binding order shows IPv4 first. Not sure what is up here. Doesn't seem to be affecting anything, but I'd love to track down what is causing this. Thanks, Chris Bodnar, MCSE Sr. Systems Engineer Infrastructure Service Delivery Distributed Systems Service Delivery - Intel Services Guardian Life Insurance Company of America Email: [email protected] Phone: 610-807-6459 Fax: 610-807-6003 -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, November 03, 2009 3:40 PM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? Hmmm... ours don't seem to do that, but we've disabled IPv6 since we're not using it yet. Are you trying to run both protocols, but get it to default to IPv4? If so, have you tried changing the binding order on the NIC so that IPv4 shows up first? -Bonnie -----Original Message----- From: Christopher Bodnar [mailto:[email protected]] Sent: Tuesday, November 03, 2009 11:54 AM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? Yeah, I did find that. I'd rather have a good idea of why it behaves this way. Thanks Chris Bodnar, MCSE Sr. Systems Engineer Infrastructure Service Delivery Distributed Systems Service Delivery - Intel Services Guardian Life Insurance Company of America Email: [email protected] Phone: 610-807-6459 Fax: 610-807-6003 -----Original Message----- From: Malcolm Reitz [mailto:[email protected]] Sent: Tuesday, November 03, 2009 1:57 PM To: NT System Admin Issues Subject: RE: PING on W2K8 server uisng IPv6? How about: C:>ping -4 MYSERVER -Malcolm -----Original Message----- From: Christopher Bodnar [mailto:[email protected]] Sent: Tuesday, November 03, 2009 11:12 AM To: NT System Admin Issues Subject: PING on W2K8 server uisng IPv6? OK so if I ping the localhost on a W2K8 box by hostname it defaults to the IPv6 address of ::1 even if IPv6 is disabled. So this will return ::1 c:>ping MYSERVER Reply from ::1: time=4ms Reply from ::1: time<1ms Reply from ::1: time<1ms Reply from ::1: time<1ms If I comment out the IPv6 address in the HOSTS file it will return an IPv4 address if I ping localhost, but not if I PING the NetBIOS name. Does anyone know of some documentation that talks about this? I'd like it to respond with an IPv4 address for everything. Thanks, Chris ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ----------------------------------------- This message, and any attachments to it, may contain information that is privileged, confidential, and exempt from disclosure under applicable law. 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