DHCP being dropped by Lumen?

Is anyone experiencing DHCP traffic being discarded by Lumen? Best Regards; Gene... [cid:image001.jpg@01D87B27.2763E9F0]<http://www.momentumtelecom.com/> Gene Dryden [cid:image002.jpg@01D87B27.2763E9F0] Technical Operations Manager Phone: 470-348-0143 "The noblest art is that of making others happy"― P.T. Barnum Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website.

Yes. I noticed this same issue last month. I spoke with Lumen and it was confirmed that they were blocking UDP/67 through some paths for some reason. I didn't get any follow-ups from Lumen on it though. — Kate
On Jun 8, 2022, at 8:01 AM, Gene Dryden via Outages <outages@outages.org> wrote:
Is anyone experiencing DHCP traffic being discarded by Lumen?
Best Regards; Gene… <image001.jpg> <http://www.momentumtelecom.com/> Gene Dryden <image002.jpg> Technical Operations Manager Phone: 470-348-0143 “The noblest art is that of making others happy”― P.T. Barnum
Disclaimer
The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful.
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Is there any just cause for a wide area carrier like Lumen to pass a network level protocol like DHCP? Cause I can't think of one... On June 8, 2022 11:20:39 AM EDT, Kate Gerry via Outages <outages@outages.org> wrote:
Yes. I noticed this same issue last month. I spoke with Lumen and it was confirmed that they were blocking UDP/67 through some paths for some reason.
I didn't get any follow-ups from Lumen on it though.
— Kate
On Jun 8, 2022, at 8:01 AM, Gene Dryden via Outages <outages@outages.org> wrote:
Is anyone experiencing DHCP traffic being discarded by Lumen?
Best Regards; Gene… <image001.jpg> <http://www.momentumtelecom.com/> Gene Dryden <image002.jpg> Technical Operations Manager Phone: 470-348-0143 “The noblest art is that of making others happy”― P.T. Barnum
Disclaimer
The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful.
This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website.
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-- Sent from my Android device with K-9 Mail. Please excuse my brevity.

On Wed Jun 08, 2022 at 11:25:59am -0400, Jay Ashworth via Outages wrote:
Is there any just cause for a wide area carrier like Lumen to pass a network level protocol like DHCP? Cause I can't think of one...
Centralised DHCP server in conjunction with DHCP relay at remote sites. If I were buying an Internet service, I wouldn't expect my service provider to arbitarily block some ports (unless it's to protect against an ongoing network attack, and it was communicated to customers). Simon

DHCP broadcasts should not be forwarded, but a unicasted DHCP request/reply should be passed no differently from any other IP packet. -C
On Jun 8, 2022, at 8:30 AM, Simon Lockhart via Outages <outages@outages.org> wrote:
On Wed Jun 08, 2022 at 11:25:59am -0400, Jay Ashworth via Outages wrote:
Is there any just cause for a wide area carrier like Lumen to pass a network level protocol like DHCP? Cause I can't think of one...
Centralised DHCP server in conjunction with DHCP relay at remote sites.
If I were buying an Internet service, I wouldn't expect my service provider to arbitarily block some ports (unless it's to protect against an ongoing network attack, and it was communicated to customers).
Simon _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages

An argument that has been going on on nanog for about 30 years now, yes. ;-) On June 8, 2022 11:30:44 AM EDT, Simon Lockhart <simon@slimey.org> wrote:
On Wed Jun 08, 2022 at 11:25:59am -0400, Jay Ashworth via Outages wrote:
Is there any just cause for a wide area carrier like Lumen to pass a network level protocol like DHCP? Cause I can't think of one...
Centralised DHCP server in conjunction with DHCP relay at remote sites.
If I were buying an Internet service, I wouldn't expect my service provider to arbitarily block some ports (unless it's to protect against an ongoing network attack, and it was communicated to customers).
Simon
-- Sent from my Android device with K-9 Mail. Please excuse my brevity.

Is this referring to lumen as an ISP or lumen as a l2 circuit provider? I would expect dhcp to work over a l2 private line but not over the internet. From: Outages <outages-bounces@outages.org> on behalf of Kate Gerry via Outages <outages@outages.org> Date: Wednesday, June 8, 2022 at 10:22 AM To: Gene Dryden <gene.dryden@momentumtelecom.com> Cc: outages@outages.org <outages@outages.org> Subject: Re: [outages] DHCP being dropped by Lumen? Yes. I noticed this same issue last month. I spoke with Lumen and it was confirmed that they were blocking UDP/67 through some paths for some reason. I didn't get any follow-ups from Lumen on it though. — Kate On Jun 8, 2022, at 8:01 AM, Gene Dryden via Outages <outages@outages.org<mailto:outages@outages.org>> wrote: Is anyone experiencing DHCP traffic being discarded by Lumen? Best Regards; Gene… <image001.jpg><http://www.momentumtelecom.com/> Gene Dryden <image002.jpg> Technical Operations Manager Phone: 470-348-0143 “The noblest art is that of making others happy”― P.T. Barnum Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website. _______________________________________________ Outages mailing list Outages@outages.org<mailto:Outages@outages.org> https://puck.nether.net/mailman/listinfo/outages The risk of trading futures and options can be substantial. All information, publications, and material used and distributed by Advance Trading Inc. shall be construed as a solicitation. ATI does not maintain an independent research department as defined in CFTC Regulation 1.71. Information obtained from third-party sources is believed to be reliable, but its accuracy is not guaranteed by Advance Trading Inc. Past performance is not necessarily indicative of future results.

This is referring to Lumen as an ISP, UDP/67 packets are dropped at various points in Lumen’s network. UDP/68 passes just fine. These aren’t DHCP broadcast packets, just simple unicast dhcp-relay packets. Sent from my iPhone On Jun 8, 2022, at 11:25 AM, Leato, Gary <gleato@advance-trading.com> wrote: Is this referring to lumen as an ISP or lumen as a l2 circuit provider? I would expect dhcp to work over a l2 private line but not over the internet. From: Outages <outages-bounces@outages.org> on behalf of Kate Gerry via Outages <outages@outages.org> Date: Wednesday, June 8, 2022 at 10:22 AM To: Gene Dryden <gene.dryden@momentumtelecom.com> Cc: outages@outages.org <outages@outages.org> Subject: Re: [outages] DHCP being dropped by Lumen? Yes. I noticed this same issue last month. I spoke with Lumen and it was confirmed that they were blocking UDP/67 through some paths for some reason. I didn't get any follow-ups from Lumen on it though. — Kate On Jun 8, 2022, at 8:01 AM, Gene Dryden via Outages <outages@outages.org<mailto:outages@outages.org>> wrote: Is anyone experiencing DHCP traffic being discarded by Lumen? Best Regards; Gene… <image001.jpg><http://www.momentumtelecom.com/> Gene Dryden <image002.jpg> Technical Operations Manager Phone: 470-348-0143 “The noblest art is that of making others happy”― P.T. Barnum Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website. _______________________________________________ Outages mailing list Outages@outages.org<mailto:Outages@outages.org> https://puck.nether.net/mailman/listinfo/outages The risk of trading futures and options can be substantial. All information, publications, and material used and distributed by Advance Trading Inc. shall be construed as a solicitation. ATI does not maintain an independent research department as defined in CFTC Regulation 1.71. Information obtained from third-party sources is believed to be reliable, but its accuracy is not guaranteed by Advance Trading Inc. Past performance is not necessarily indicative of future results.

I can confirm and agree. [cid:image001.png@01D87B40.3D252EC0] Bob Hancock P 205.978.6027 | bhancock@momentumtelecom.com<mailto:bhancock@momentumtelecom.com> From: Outages <outages-bounces@outages.org> On Behalf Of Kate Gerry via Outages Sent: Wednesday, June 8, 2022 1:31 PM To: Leato, Gary <gleato@advance-trading.com> Cc: Gene Dryden <gene.dryden@momentumtelecom.com>; outages@outages.org Subject: [External Message] Re: [outages] DHCP being dropped by Lumen? This is referring to Lumen as an ISP, UDP/67 packets are dropped at various points in Lumen’s network. UDP/68 passes just fine. These aren’t DHCP broadcast packets, just simple unicast dhcp-relay packets. Sent from my iPhone On Jun 8, 2022, at 11:25 AM, Leato, Gary <gleato@advance-trading.com<mailto:gleato@advance-trading.com>> wrote: Is this referring to lumen as an ISP or lumen as a l2 circuit provider? I would expect dhcp to work over a l2 private line but not over the internet. From: Outages <outages-bounces@outages.org<mailto:outages-bounces@outages.org>> on behalf of Kate Gerry via Outages <outages@outages.org<mailto:outages@outages.org>> Date: Wednesday, June 8, 2022 at 10:22 AM To: Gene Dryden <gene.dryden@momentumtelecom.com<mailto:gene.dryden@momentumtelecom.com>> Cc: outages@outages.org<mailto:outages@outages.org> <outages@outages.org<mailto:outages@outages.org>> Subject: Re: [outages] DHCP being dropped by Lumen? Yes. I noticed this same issue last month. I spoke with Lumen and it was confirmed that they were blocking UDP/67 through some paths for some reason. I didn't get any follow-ups from Lumen on it though. — Kate On Jun 8, 2022, at 8:01 AM, Gene Dryden via Outages <outages@outages.org<mailto:outages@outages.org>> wrote: Is anyone experiencing DHCP traffic being discarded by Lumen? Best Regards; Gene… <image001.jpg><http://www.momentumtelecom.com/> Gene Dryden <image002.jpg> Technical Operations Manager Phone: 470-348-0143 “The noblest art is that of making others happy”― P.T. Barnum Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website. _______________________________________________ Outages mailing list Outages@outages.org<mailto:Outages@outages.org> https://puck.nether.net/mailman/listinfo/outages<https://puck.nether.net/mailman/listinfo/outages> The risk of trading futures and options can be substantial. All information, publications, and material used and distributed by Advance Trading Inc. shall be construed as a solicitation. ATI does not maintain an independent research department as defined in CFTC Regulation 1.71. Information obtained from third-party sources is believed to be reliable, but its accuracy is not guaranteed by Advance Trading Inc. Past performance is not necessarily indicative of future results. Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website.
participants (7)
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Bob Hancock
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Chris Woodfield
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Gene Dryden
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Jay Ashworth
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Kate Gerry
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Leato, Gary
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Simon Lockhart