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#11
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Mysterious internet/ethernet issue (kinda needtesting/connection/communication service to diagnose it ???)
Also, if it's a cable modem, there's usually a web server located at
http://192.168.100.1 Suppose the cable modem does listen to 192.168.100.1 what should the netmask be on my windows computer to be able to access it ? And what should the ip address of the windows computer be ? Some guesses: Windows PC 192.168.100.2 Mask either: 255.255.255.0 or Mask either: 255.255.254.0 ? or Mask either: 255.255.0.0 ? Tried some of these some time. Never really understood how to compute these netmasks properly, it's a very fokking annoying feature of the internet tech. Bye, Skybuck. |
#12
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Mysterious internet/ethernet issue (kinda needtesting/connection/communication service to diagnose it ???)
I tried:
192.168.100.2 for windows PC 255.255.255.0 netmask. The cable modem remains unaccessable from the local LAN. So your knowledge of this is now completely useless, because of either: 1. It's locked by the ISP, these cable modems can only be accessed from the outside. 2. It's a bug/problem, modem was resetted. Most likely cause is locking/updating of the cable modem bios/firmware. There was a thread on the internet about people locating their public IPs of their cable modems, this is more difficult to do then it seems. A tracert will probably not report it because the cable modem does not take part in the trace and does not reveal itself ? Or there is another reason for it. If you know how to find my public IP address of my Cable modem I am all ears, cause this is interesting stuff. And apperently it is something completely different than my Windows PC public IP address which I can tell you right now is simply: 85.25.113.203 mask 255.255.254.0 gateway 84.25.112.1 dhcp 10.255.235.1 Scan/do with it what you want Bye, Skybuck. |
#14
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Mysterious internet/ethernet issue (kinda need testing/connection/communication service to diagnose it ???)
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#15
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Mysterious internet/ethernet issue (kinda needtesting/connection/communication service to diagnose it ???)
I used this UDP port scanner to send UDP packets to my computer:
https://hackertarget.com/udp-port-scan/ So far my computer seems to be receiving UDP packets fine, even with my own software. I did reset cable modem though before this test to do some experiments. Maybe that has something to do with it. Still need a tester to test tcp/ip custom tools and finally the coin system. It would be very weird if it wouldn't work after this confirmation udp seems to be working fine. Bye, Skybuck. |
#16
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Mysterious internet/ethernet issue (kinda need testing/connection/communication service to diagnose it ???)
On Fri, 12 Oct 2018 08:45:53 -0700 (PDT), wrote:
Also, if it's a cable modem, there's usually a web server located at http://192.168.100.1 Suppose the cable modem does listen to 192.168.100.1 what should the netmask be on my windows computer to be able to access it ? And what should the ip address of the windows computer be ? It's actually much easier than that. You don't need to make any changes to your networking configuration because if the cable modem has a web server listening at that address, it simply "sniffs" the outbound traffic to see the destination IP address. If it matches the address of the internal web server, the traffic is redirected to the internal web server rather than forwarded on to your ISP (to the Internet). The only time you'd need to make a network change is if you have a NAT router and you've configured the LAN side to be in the 192.168.100.0/24 subnet. In that case, you wouldn't be able to reach a web server in the cable modem. The technical details probably don't matter to you. I get the sense that your modem is a combo modem-router, so the web server that shows cable modem statistics, if there is one, would be accessible via one of the pages at the LAN address of the router side of that device. I haven't seen combo modem-router devices that have a separate web server at 192.168.100.1 like plain cable modems usually do. It's also possible that your ISP doesn't allow you to see that information, but in all cases they can see it from their side. From their side, the modem device has an entirely different IP address that they can use to access it and see what's going on. You can't use that IP address because traffic to that address has to come in over the coax line. Some guesses: Windows PC 192.168.100.2 Mask either: 255.255.255.0 That would work if you're connecting directly to a plain cable modem that has a web server at 192.168.100.1. If there's a router between your PC and the modem, it won't work. The technical details probably don't matter to you but, in a nutshell, you can't have the same subnet on two sides of a router and expect the router to pass that traffic. or Mask either: 255.255.254.0 ? or Mask either: 255.255.0.0 ? Tried some of these some time. Never really understood how to compute these netmasks properly, it's a very fokking annoying feature of the internet tech. Annoying perhaps, but critical to the success of any networking, whether local on your LAN or extending to the Internet as a whole. Simply put, the netmask tells you which part of an IP address refers to the network and which part identifies the particular host. |
#17
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Mysterious internet/ethernet issue (kinda needtesting/connection/communication service to diagnose it ???)
Everything seems fine with my IP/UDP situation. (Resetted cable modem too)
Used a port scanner to send some udp packets to my computer. This one udp packet at port 69 arrived at my computer. I also re-enabled winpcap to see what is going on. Could see ip/udp packets coming in just fine. So it's probably other ****ty systems not being able to connect, still confused about this. Bye, Skybuck. |
#18
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Mysterious internet/ethernet issue (kinda need testing/connection/communication service to diagnose it ???)
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#19
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Mysterious internet/ethernet issue (kinda needtesting/connection/communication service to diagnose it ???)
Tomorrow new device will arrive between 10h and 13h according to a mail I got.
So if true, then by tomorrow at least TV signal will be better, maybe my internet connection will be even faster. It seems wise to wait with testing until this device is replaced, then again, I remain very skeptical that this noise on tv signal has any effect on cable modem. I shall perform some speed tests just to see if there is any difference before and after replacing the device. Another explanation could be that PC too slow to achieve certain speeds, then again I think under ideal circumstances, 50 megabyte/sec should be doable for this system perhaps even 100 megabyte/sec. So far I could download 20 megabyte/sec with bittorrent just fine this year.. The harddisk/cpu can't even keep up with it having to calculate sha256 hashes. I think 20 megabyte/sec is already pretty insane fast Cannot imagine it becoming any faster thx to new device. My hypothesis for now is: The 69 million dropped packets may have been an incident or some other case, maybe PC too slow occasionally. Kinda wanted to now if this was sporadic or constantly... This is why I would like to get into the cable modem's log to see it with my own eyes to see what is going on. Perhaps this docsis is so good that this noise doesn't even influence the speed to match... then again... a dropped packet is a dropped packet... maybe some docsis frames not sure what this guy ment. Not being able to go into this cable modem log kinda sucks though. Now I am not sure if the noise/packet loss was real and what kind... I do have logs from long ago... showing some kind of signal loss but that was probably when the operating on the net... this was 2004/2005 maybe 2009.... and a different cable modem a surfboard. Anyway... Tonight and maybe tomorrow night I will try and scan a certain 10.x.x.x ip range since this is supposed to be the public ip ranges of these cable modems. In an attempt to find my cable modems IP. Or perhaps a better idea, phone the ISP... ask them the IP address of my cable modem... but for me it's kinda more fun to perform a scan just to see if that works or not. Since it will be at night not too much of a big deal for me... except system collecting some dust... Maybe I ll try even both not sure yet. Also depends on if others will test this software with me or not, then I may just skip the whole thing and hope for the best. What if tv signal does not improve ? Hmmm then I will continue performing software test if I manage to find somebody to do this with. Bye for now, Skybuck. |
#20
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Mysterious internet/ethernet issue (kinda need testing/connection/communication service to diagnose it ???)
On Fri, 12 Oct 2018 11:56:41 -0400, Paul wrote:
For test, you'd want to set up a server on Port 80 (WWW) or Port 23 (FTP). Tip 1: If you're testing locally, any unused port is fair game. Tip 2: Port 23 is Telnet. FTP is port 21 for the control channel, plus port 20 or a random high port for the data channel, depending on whether it's configured to be Active or Passive. I'm not convinced yet, that your device is bridged though. It's a modem/router. I agree. It sure looks that way. |
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