Comcast Business packet loss in LA
Can someone from Comcast business contact me off list about resolving heavy packet loss that runs through the below hop? I'm seeing >40% loss when coming at it from other ISP's or other Comcast connections. IP: 75.65.163.20 Name: c-75-65-163-20.hsd1.la.comcast.net Thank you, Spencer
RE: public open resolver list?
There are several good articles about the different ones out there and the level of filtering and response they can offer. I personally have been happy with Quad9's free DNS server (9.9.9.9) and the basic anti-bad stuff filtering it does. You get no reporting on what it blocks, but there are services (OpenDNS for example) out there you can pay for that offer reporting if needed. Thank you, Spencer -Original Message- From: NANOG On Behalf Of Nick Hilliard Sent: Monday, February 1, 2021 12:20 PM To: Randy Bush Cc: North American Network Operators' Group Subject: Re: public open resolver list? CAUTION: This email originated from an external source. Verify the sender before taking any actions. Randy Bush wrote on 01/02/2021 18:16: > is there a list of public resolvers? e.g. 1.1.1.1, 4.4.4.4, 8.8.8.8, > etc.? https://public-dns.info/ ? Nick
RE: Video Conferencing options to Beijing
Thank you Scott and Eric. This gives me some good options to pursue. Thank you, Spencer From: Scott, Thomas Sent: Friday, January 8, 2021 11:48 AM To: Spencer Coplin ; North American Network Operators' Group Subject: RE: Video Conferencing options to Beijing CAUTION: This email originated from an external source. Verify the sender before taking any actions. Spencer, Skype (not for business) is what I've used in the past for video-conferencing inside the great (fire)wall. It works without a VPN, not sure if there are any limitations currently. Regards, [cid:image001.png@01D6E5B5.367B7470]<https://www.intelsat.com/> Thomas Scott Engineer, Network Operations 2875 Fork Creek Church Road, Ellenwood, GA 30294 +1 404-381-2446 | M +1 480-241-7422 www.intelsat.com<http://www.intelsat.com/> From: NANOG mailto:nanog-bounces+thomas.scott=intelsat@nanog.org>> On Behalf Of Spencer Coplin Sent: Friday, January 8, 2021 12:36 To: North American Network Operators' Group mailto:nanog@nanog.org>> Subject: Video Conferencing options to Beijing External Email - Use Caution | I know this is a bit outside of North America, so if this isn't relevant, please let me know. I have a client that is asking for video conferencing options back to Beijing for their users. What has everyone's experience been with setting up a solution like this? We have to assume the Chinese users will be on non-VPN connections and under the filters of the Great Firewall of China. We are looking for software that can be installed on Windows, so apps that rely on Android or iOS are at bottom of our list, but not fully out of consideration. Teams was my first thought, but per Microsoft, Teams isn't available in China: https://docs.microsoft.com/en-us/microsoft-365/admin/services-in-china/services-in-china?view=o365-21vianet<https://urldefense.com/v3/__https:/docs.microsoft.com/en-us/microsoft-365/admin/services-in-china/services-in-china?view=o365-21vianet__;!!NlOElhM7!2rjVTVk6M6S63HI6gfuyz3jleBUnBfZMYyPf-rhqfHEryoOOJ_cNm1BvpY6VVUiEh7o$> Thank you, Spencer *** This email was received from a system outside of Intelsat's network and may contain hyperlinks. Emails from external sources could be malicious in nature. Please ensure that the message is from a trusted, validated source before taking any action. Please contact the Intelsat Help Desk with any questions or concerns. Thank You *** [https://www.intelsat.com/wp-content/uploads/2020/12/INTELSAT-Logo-Horiz_4C_200-002.jpg] As the foundational architects of satellite technology, Intelsat operates the largest, most advanced satellite fleet and connectivity infrastructure in the world. We apply our unparalleled expertise and global scale to reliably and seamlessly connect people, devices and networks in even the most challenging and remote locations. Transformation happens when businesses, governments and communities build a ubiquitous connected future through Intelsat's next-generation global network and simplified managed services. At Intelsat, we turn possibilities into reality. Imagine Here, with us, at Intelsat.com. For more information, visit www.intelsat.com<http://www.intelsat.com> and follow us on Facebook<https://www.facebook.com/#%21/pages/Intelsat/106822915740>, Twitter<https://twitter.com/INTELSAT> and LinkedIn<http://www.linkedin.com/company/5071?trk=vsrp_companies_res_name&trkInfo=VSRPsearchId%3A858898061376423570001%2CVSRPtargetId%3A5071%2CVSRPcmpt%3Aprimary> This email message is for the sole use of the intended recipients and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Intelsat S.A. and its subsidiaries.
Video Conferencing options to Beijing
I know this is a bit outside of North America, so if this isn't relevant, please let me know. I have a client that is asking for video conferencing options back to Beijing for their users. What has everyone's experience been with setting up a solution like this? We have to assume the Chinese users will be on non-VPN connections and under the filters of the Great Firewall of China. We are looking for software that can be installed on Windows, so apps that rely on Android or iOS are at bottom of our list, but not fully out of consideration. Teams was my first thought, but per Microsoft, Teams isn't available in China: https://docs.microsoft.com/en-us/microsoft-365/admin/services-in-china/services-in-china?view=o365-21vianet Thank you, Spencer
RE: CloudFlare Issues?
My sites appear to be normal. Maybe it’s time for happy hour? Thank you, Spencer From: NANOG On Behalf Of Chris Grundemann Sent: Friday, July 17, 2020 4:39 PM To: NANOG list Subject: CloudFlare Issues? CAUTION: This email originated from an external source. Verify the sender before taking any actions. Looks like there may be something big up (read: down) at CloudFlare, but their status page is not reporting anything yet. Am I crazy? Or just time to give up on the internet for this week? -- @ChrisGrundemann http://chrisgrundemann.com
RE: [EXT] Xfinity (both ends) - can't ping from users home to office
Kevin, you are amazing! This absolutely fixed our issue. Thank you so much! Thank you, Spencer From: Kevin Kurpiel Sent: Friday, June 19, 2020 5:04 PM To: Spencer Coplin Cc: North American Network Operators' Group Subject: Re: [EXT] Xfinity (both ends) - can't ping from users home to office CAUTION: This email originated from an external source. Verify the sender before taking any actions. On Jun 19, 2020, at 10:18 AM, Spencer Coplin mailto:scop...@f1techgroup.com>> wrote: Thank you, he has the xfinity provided router/modem, so no cpe router to make a change on. I don't think we can change it's mac address. Good thought on pursuing it through the business side and I'll proceed with that. Thank you, Spencer Spencer Coplin We’re facing the same issue at my current job. We have many users at home who are unable to access sites in our datacenter. We found that if the user disables the "XFi Advanced Security feature" on their Comcast provided router, they can reach our sites again. We’ve been trying to work with Comcast to see if there is any way to work around this and find out why it suddenly decided to block our content, but don’t have a good solution yet. Might be worth having your user try to disable that feature to see if it helps. Kevin
RE: [EXT] Xfinity (both ends) - can't ping from users home to office
Thank you, he has the xfinity provided router/modem, so no cpe router to make a change on. I don't think we can change it's mac address. Good thought on pursuing it through the business side and I'll proceed with that. Thank you, Spencer Spencer Coplin -Original Message- From: Chuck Anderson Sent: Friday, June 19, 2020 10:13 AM To: Spencer Coplin Cc: North American Network Operators' Group Subject: Re: [EXT] Xfinity (both ends) - can't ping from users home to office CAUTION: This email originated from an external source. Verify the sender before taking any actions. On Thu, Jun 18, 2020 at 11:57:12PM +, Spencer Coplin wrote: > I have a client that is unable to ping his office Comcast Business connection > from his home Xfinity connection. It was working a month ago and we can > confirm that his connection works over his iphone's hotspot. I am able to > ping from my own xfinity residential (same city) without issues. I suspect > something in the routing from his home connection is messed up as > tracert/ping can't even resolve his office's IP. The client called Xfinity > residential support and they blamed the inability to ping the IP on his > office vpn connection. > > Has anyone else his this and if so, how was it resolved? Sort of. Try having him change the MAC address of his residential CPE router so the BNG sees it as a "new" device. In my case that resolved connectivity issues after Comcast did some "network maintenance" and broke everything for me. Alternatively, have you tried working this issue from the Business side? You'd probably get more leverage that way.
Xfinity (both ends) - can't ping from users home to office
Hey, is anyone on here able to check routing for Xfinity residential to Xfinity business? I have a client that is unable to ping his office Comcast Business connection from his home Xfinity connection. It was working a month ago and we can confirm that his connection works over his iphone's hotspot. I am able to ping from my own xfinity residential (same city) without issues. I suspect something in the routing from his home connection is messed up as tracert/ping can't even resolve his office's IP. The client called Xfinity residential support and they blamed the inability to ping the IP on his office vpn connection. Has anyone else his this and if so, how was it resolved? Thank you in advance! Thank you, Spencer Coplin
