Yes, I own my own modem even though comcast now charges me $5/month more than 
if I rented their equipment for this privilege.
Owen


> On Sep 10, 2021, at 15:49 , Eric Kuhnke <eric.kuh...@gmail.com> wrote:
> 
> Ideally being your own customer owned cable modem that meets specs (Comcast 
> does allow this in some regions) that will function as a layer 2 bridge. 
> 
> On Fri, Sep 10, 2021, 1:46 PM Owen DeLong <o...@delong.com 
> <mailto:o...@delong.com>> wrote:
> First thing I do with any cable modem is convert it to bridge mode.
> 
> The fewer “smarts” in the cable modem doing odd things to my traffic, the 
> better.
> 
> Owen
> 
> 
>> On Sep 10, 2021, at 10:40 , Eric Kuhnke <eric.kuh...@gmail.com 
>> <mailto:eric.kuh...@gmail.com>> wrote:
>> 
>> I know this is not a solution to your problem, but I have found myself more 
>> often running the public interface of openvpn systems on port 443. Any 
>> sufficiently advanced DPI setup will be able to tell that it's not quite 
>> normal https traffic. 
>> 
>> But 99% of the time it seems to serve the purpose of defeating 
>> heavily-restricted "free" wifi in airports, hotels, random guest/amenity 
>> wifi stuff, which obviously can't block https/443 to the world these days.
>> 
>> On Fri, Sep 10, 2021 at 11:08 AM Jason Kuehl <jason.w.ku...@gmail.com 
>> <mailto:jason.w.ku...@gmail.com>> wrote:
>> This is an SSL VPN that is being blocked. This is what failure looks like. 
>> Curl is the same.
>> 
>> Once we disable the Xfi  Advanced Security everyone can connect.
>> 
>> 
>> 
>> On Fri, Sep 10, 2021 at 11:01 AM Jim Popovitch via NANOG <nanog@nanog.org 
>> <mailto:nanog@nanog.org>> wrote:
>> On Fri, 2021-09-10 at 10:31 -0400, Jason Kuehl wrote:
>> > For whatever reason Comcast Xfinity is blocking my VPN URL. 
>> 
>> Not certain that this applies, but Concast Advanced Security (setup in
>> your Comcast gateway) only allows outbound VPN connections to UDP ports
>> 500, 4500, and 62515 and TCP port 1723.
>> 
>> -Jim P.
>> 
>> 
>> 
>> -- 
>> Sincerely,
>>  
>> Jason W Kuehl
>> Cell 920-419-8983
>> jason.w.ku...@gmail.com <mailto:jason.w.ku...@gmail.com>

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