You charged a hefty service call for that I hope... Josh Luthman 24/7 Help Desk: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
On Mon, Mar 22, 2021 at 3:35 PM Mark - Myakka Technologies <[email protected]> wrote: > UPDATE > > I couldn't take the whining and crying about the VPN being down. Remote > IT guys 100% sure it is my issue (must be blocking port 443). Customer > 100% I changed something. So, I gathered my testing equipment and headed on > out. Well both IT guy and customer never mentioned that the VPN appliance > is connected to their router via a 100' CAT5e cable run on the floor across > the house. They did at least have it tape down in places. When I tried to > connect my notebook using the cable, I got no connection. Pulled out the > old CAT5 tester and only 3 or of 8 lit up. Replaced the cable and guess > what, VPN now working. > > > -- > Best regards, > Mark mailto:[email protected] <[email protected]> > > Myakka Technologies, Inc. > www.Myakka.com > > ------ > > Thursday, March 18, 2021, 1:37:08 PM, you wrote: > > > I'm working a very similar issue right now. I think I have tracked it > down to an issue with a single upstream connection, and it looks like it's > doing something with fragmenting/dropping large packets. Doing a packet > capture, it looks like the VPN setup packet is about 2062 bytes in size, > and it's not getting to the other end. ICMP Packets will flow regardless > of size (of course fragmenting) If I route the traffic over any of my > other upstreams, it works fine. I have a ticket open with this upstream, > but getting them to understand what the issue is has been cumbersome. > On 3/18/2021 12:27 PM, Dev wrote: > > Do you have other customers with similar config/topology where you can > test, maybe who hit the same VPN server? PCAP’s aside, VPN’s don’t usually > like NAT and firewall changes, but you have to divide and conquer to track > down VPN issues often because the error reporting is vague at best > typically. > > > On Mar 17, 2021, at 8:40 AM, Mark - Myakka Technologies <[email protected]> > wrote: > > Re: [AFMUG] VPN issues > Bill, > > Well that is the issue. Could be anything. Been working fine since > June. I have many many more people using VPN's with no issues. > > But there is an issue on her link. This is a fiber link BTW. Her > Internet works fine. > > Her IT guys have washed their hands of it, pushing it all on me. Not sure > how I'm going to figure it out being I don't know what appliance she is > using yet. Even when I get that info, I'll have no access to it. Doubt > they are going to give me admin privileges on their equipment. Also, I > don't get the opportunity to see what errors are showing up on server logs. > > > > > -- > Best regards, > Mark mailto:[email protected] <[email protected]> > > Myakka Technologies, Inc. > www.Myakka.com <http://www.myakka.com/> > > ------ > > Wednesday, March 17, 2021, 11:27:35 AM, you wrote: > > > I would suspect maybe segmentation issues. Sometimes segment boundaries > can mess with a VPN. > > bp > <part15sbs{at}gmail{dot}com> > On 3/17/2021 7:50 AM, Mark - Myakka Technologies wrote: > > I have a customer that has some type of VPN router device on our > system. Her VPN isn't working anymore. Her Internet is fine. I did > a packet capture for her IT guys and sent it to them. Their answer > is the usual "It's your ISPs fault". I'm not a VPN expert, but I > attached the filtered packet dump. Looks like things are talking back > and forth. Any issues anyone can see? > > > -- > > Thanks, > Mark mailto:[email protected] <[email protected]> > > Myakka Technologies, Inc. > www.Myakka.com <http://www.myakka.com/> -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
-- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
