All Questions
20
questions
4
votes
2
answers
1k
views
How does a DSL modem know which ISP to connect to?
I am terminating my contract with my old ISP, however, because I've already paid my account till the end of the month, this connection is still active. I have also signed up with a new ISP who mailed ...
- 149
3
votes
1
answer
2k
views
My CenturyLink fiber modem is bridged - can I just get rid of it and use my Cisco ASA 5505?
I was about to go on Amazon to buy my own CenturyLink branded fiber modem (Arris C2100T) to replace the one I am renting from the ISP (Arris C3000T), but then I read here on SuperUser that I might not ...
- 431
2
votes
1
answer
617
views
Home Fibernetwork setup vs Traceroute results - where is my WAN IP located?
On my learning with using traceroute, I have actually put it to practical use with my current home network setup trying to figure out what are the available hops and IPs assignment but have ...
- 1,625
1
vote
2
answers
2k
views
Why does my public IP change when I plug in different devices into the modem?
If I plug my router into my modem, I have one public IP address (as reported by https://www.whatismyip.com and the like). When I plug my computer directly into the modem, my public IP address changes. ...
- 524
1
vote
1
answer
273
views
Why am I able to login to another ISP account from my ADSL modem?
We connect to the internet using ADSL installed on the existing phone system (copper wires) and via several ISPs.
Every subscriber, from his ADSL modem/router, can log in to any ISP (other than his ...
- 65
1
vote
1
answer
2k
views
How to connect ONT to a non-ISP provided router?
My final objective is to load balance the internet signal from two different ISPs and distribute that through a mesh network.
My initial setup was the following. I have a cable modem from which I ...
- 161
1
vote
1
answer
258
views
Will I run double-NAT with this configuration?
My ISP has provided me with a VDSL2 router/modem with VoIP functionallity
(Technicolor TG788V v3). Problem is that I want to connect my own router to the network. I contacted my ISP and they told me ...
- 133
1
vote
1
answer
1k
views
Why does traceroute only sometimes fail to ping my ISP?
I've read that it's fairly common for the first hop or two of a traceroute to only return timed out, as the ISP servers refuse all pings; what does it mean if only some of those pings are dropped/...
- 13
1
vote
0
answers
38
views
Can cable signal strength cause failures in particular layer 3 protocols?
In the past, I've lost 98%ish IPv4 connectivity on my Comcast connection, but I had IPv6 connectivity fully. (IPv4 SYNs, or the corresponding SYN-ACKs (it's hard to tell) were getting dropped most of ...
- 2,522
0
votes
2
answers
549
views
Does my external IP belong to my cable modem or router?
Sorry if others have touched upon this before.
I'm simply asking whether the external IP 'belongs' to the cable modem or my home router.
If someone is pinging or attacking my external IP is it ...
Dali
0
votes
1
answer
2k
views
IPv6 accessibility and Hitron Router
For my Hitron CODA-4582U Router, this is the best I can find and come up with -
However, trying to connect from internet failed:
Immediate connect fail for 2607:9880:3627:ffa4:92b1:xx:xx:681f: ...
- 8,851
0
votes
1
answer
130
views
Why do some Internet service providers require special equipment?
I am trying to set up Internet at a new place with AT&T (U.S.). The online process requires me to pay $10 per month for a thingy they call "WiFi gateway" which they claim serves as "...
- 147
0
votes
2
answers
334
views
Networking setup for single static IP
Right now I am trying to figure out the networking parameters of an upgrade of my service from my ISP. Right now I have a home network with a residential dynamic ip address. I am working on an ...
- 11
0
votes
0
answers
124
views
Routers can not obtain DHCP lease from modem, but PC can
I have two different routers from different brands, neither of which can obtain a DHCP lease from the modem. But if I connect a PC directly to the modem, it obtains one connects immediately. This only ...
- 1,753
0
votes
0
answers
260
views
How does Private VPN (like IPVanish) prevent ISPs from monitoring my internet traffic?
I've recently purchased IPVanish subscription due to the concern of NSA snooping.
My home network is set up like following
Computers => Router => ISP Modem (Spectrum)
Now I am worried that ISP ...
- 731