Thanks, Maciej! We’ll investigate! - Bret ________________________________ From: Rabeda, Maciej <maciej.rab...@linux.intel.com> Sent: Tuesday, June 29, 2021 9:39:59 AM To: devel@edk2.groups.io <devel@edk2.groups.io>; LathaKannan Arumugam <larumu...@microsoft.com>; Bret Barkelew <bret.barke...@microsoft.com> Subject: Re: [EXTERNAL] Re: [edk2-devel] NetworkPkg: Unexpected DHCP RELEASE after PXE server reply on IPv6
Additionally, for claim that IPv4 does not do that, please provide Wireshark trace, if available. On 29-Jun-21 18:36, Maciej Rabeda wrote: Hi guys, Finally got some time to look into it. Long story short, this smells like infrastructure problem. SARR passes over 546/547 port pair. That is between UEFI PXE client and DHCP server (even if it is the same machine). The next packet is essentially a Boot Server choice step. UEFI PXE client sends a unicast discovery packet towards Boot server (same machine, same address) coded as DHCP Request. The release packet is a direct reaction to 3 second timeout (see time diff between packet 9 and 11). See section 2.2.1 in PXE spec: http://www.pix.net/software/pxeboot/archive/pxespec.pdf<https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pix.net%2Fsoftware%2Fpxeboot%2Farchive%2Fpxespec.pdf&data=04%7C01%7CBret.Barkelew%40microsoft.com%7C6ba252758f3d4ef4eb2208d93b1c8cf8%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637605816087554815%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Lb7ELKglF3Y%2Fdeg5aNdrt8WTPSpytI2kF%2FGm6CNTolQ%3D&reserved=0> Please verify that your WDS service is running correctly, since clearly there is no reaction to that packet from Boot server. [cid:part2.DA8CACBA.5A309C91@linux.intel.com] On 28-Jun-21 22:05, LathaKannan Arumugam via groups.io wrote: Can you please help us on this issues? Get Outlook for Android<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Faka.ms%2FAAb9ysg&data=04%7C01%7CBret.Barkelew%40microsoft.com%7C6ba252758f3d4ef4eb2208d93b1c8cf8%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637605816087564776%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=7z98WyQ%2BYboLv47ti6v2Fe2iZbOWzuCJAVo0uYD4R7Q%3D&reserved=0> ________________________________ From: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io><mailto:devel@edk2.groups.io> on behalf of LathaKannan Arumugam via groups.io <larumugam=microsoft....@groups.io><mailto:larumugam=microsoft....@groups.io> Sent: Friday, June 25, 2021 1:11:42 PM To: Bret Barkelew <bret.barke...@microsoft.com><mailto:bret.barke...@microsoft.com>; Rabeda, Maciej <maciej.rab...@linux.intel.com><mailto:maciej.rab...@linux.intel.com>; devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io><mailto:devel@edk2.groups.io> Subject: Re: [EXTERNAL] Re: [edk2-devel] NetworkPkg: Unexpected DHCP RELEASE after PXE server reply on IPv6 Any inputs? We kind of blocked on this for a week. Kindly look into packet capture and suggest a path forward. From: LathaKannan Arumugam Sent: Friday, June 25, 2021 9:23 AM To: Bret Barkelew <bret.barke...@microsoft.com><mailto:bret.barke...@microsoft.com>; Rabeda, Maciej <maciej.rab...@linux.intel.com><mailto:maciej.rab...@linux.intel.com>; devel@edk2.groups.io<mailto:devel@edk2.groups.io> Subject: RE: [EXTERNAL] Re: [edk2-devel] NetworkPkg: Unexpected DHCP RELEASE after PXE server reply on IPv6 Attached packet captured from server. From: Bret Barkelew <bret.barke...@microsoft.com<mailto:bret.barke...@microsoft.com>> Sent: Friday, June 25, 2021 9:19 AM To: Rabeda, Maciej <maciej.rab...@linux.intel.com<mailto:maciej.rab...@linux.intel.com>>; devel@edk2.groups.io<mailto:devel@edk2.groups.io>; LathaKannan Arumugam <larumu...@microsoft.com<mailto:larumu...@microsoft.com>> Subject: Re: [EXTERNAL] Re: [edk2-devel] NetworkPkg: Unexpected DHCP RELEASE after PXE server reply on IPv6 + @LathaKannan Arumugam<mailto:larumu...@microsoft.com> - Bret ________________________________ From: Rabeda, Maciej <maciej.rab...@linux.intel.com<mailto:maciej.rab...@linux.intel.com>> Sent: Friday, June 25, 2021 7:40:16 AM To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>; Bret Barkelew <bret.barke...@microsoft.com<mailto:bret.barke...@microsoft.com>>; Bret Barkelew <bret.barke...@microsoft.com<mailto:bret.barke...@microsoft.com>> Subject: [EXTERNAL] Re: [edk2-devel] NetworkPkg: Unexpected DHCP RELEASE after PXE server reply on IPv6 Looking at it. Any chance to get Wireshark trace for this scenario? On 25-Jun-21 09:25, brbarkel via groups.io wrote: Just poking this to see if anyone has any ideas. Thanks! -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#77294): https://edk2.groups.io/g/devel/message/77294 Mute This Topic: https://groups.io/mt/83787800/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
