If you can plug the computer into the wall to access internet
Sorry if this is a basic question but I realize I'm missing part of the theory here.
My system is essentially:
wall -> ethernet -> router -> wifi -> computer
But I'd like to simplify it for this purpose and just do:
wall -> ethernet -> router -> ethernet -> computer
(or if that's incorrect, whatever the correct chord system is).
I'm wondering why you can't just plug the computer straight into the wall:
wall -> ethernet -> computer
I wonder why I can't just open the terminal and write some code that listens for the ethernet device/interface, and then reads/writes stuff "to the internet". Maybe this is possible, not sure. Would like to know if this is possible, and if so, what is happening at a more granular level, or if not, why not.
I'm in the process of understanding virtual routers, and am wondering how a router is actually playing a part in getting the internet, and if it can be removed from the equation for this example.
networking router ethernet
asked 4 hours ago
Lance Pollard
3081312
add a comment |
Sorry if this is a basic question but I realize I'm missing part of the theory here.
My system is essentially:
wall -> ethernet -> router -> wifi -> computer
But I'd like to simplify it for this purpose and just do:
wall -> ethernet -> router -> ethernet -> computer
(or if that's incorrect, whatever the correct chord system is).
I'm wondering why you can't just plug the computer straight into the wall:
wall -> ethernet -> computer
I wonder why I can't just open the terminal and write some code that listens for the ethernet device/interface, and then reads/writes stuff "to the internet". Maybe this is possible, not sure. Would like to know if this is possible, and if so, what is happening at a more granular level, or if not, why not.
I'm in the process of understanding virtual routers, and am wondering how a router is actually playing a part in getting the internet, and if it can be removed from the equation for this example.
networking router ethernet
asked 4 hours ago
Lance Pollard
3081312
It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago
add a comment |
Sorry if this is a basic question but I realize I'm missing part of the theory here.
My system is essentially:
wall -> ethernet -> router -> wifi -> computer
But I'd like to simplify it for this purpose and just do:
wall -> ethernet -> router -> ethernet -> computer
(or if that's incorrect, whatever the correct chord system is).
I'm wondering why you can't just plug the computer straight into the wall:
wall -> ethernet -> computer
I wonder why I can't just open the terminal and write some code that listens for the ethernet device/interface, and then reads/writes stuff "to the internet". Maybe this is possible, not sure. Would like to know if this is possible, and if so, what is happening at a more granular level, or if not, why not.
I'm in the process of understanding virtual routers, and am wondering how a router is actually playing a part in getting the internet, and if it can be removed from the equation for this example.
networking router ethernet
asked 4 hours ago
Lance Pollard
3081312
Sorry if this is a basic question but I realize I'm missing part of the theory here.
My system is essentially:
wall -> ethernet -> router -> wifi -> computer
But I'd like to simplify it for this purpose and just do:
wall -> ethernet -> router -> ethernet -> computer
(or if that's incorrect, whatever the correct chord system is).
I'm wondering why you can't just plug the computer straight into the wall:
wall -> ethernet -> computer
I wonder why I can't just open the terminal and write some code that listens for the ethernet device/interface, and then reads/writes stuff "to the internet". Maybe this is possible, not sure. Would like to know if this is possible, and if so, what is happening at a more granular level, or if not, why not.
I'm in the process of understanding virtual routers, and am wondering how a router is actually playing a part in getting the internet, and if it can be removed from the equation for this example.
networking router ethernet
networking router ethernet
asked 4 hours ago
Lance Pollard
3081312
asked 4 hours ago
Lance Pollard
3081312
asked 4 hours ago
Lance Pollard
3081312
asked 4 hours ago
Lance Pollard
3081312
asked 4 hours ago
Lance Pollard
3081312
3081312
It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago
add a comment |
It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago
It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago
It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago
add a comment |
2 Answers
2
active
oldest
votes
If your "wall" output is really Ethernet which is possible if your "wall" is a fibre media convertor or Ethernet wired appartment (and not dsl for example) then it is technically possible to plug a PC into it directly, but, if you need to ask the question, doing do is probably a bad idea because -
It can directly expose your computer to the Internet, allowing remote computers to scan, fingerprint and likely exploit it - one side effect of NAT in routers is that it largely prevents this.
It prevents more then 1 device getting online (unless you turn your PC into a router.)
It may well not work without tricky configuration depending on the ISP configuration - for example pppoe encapsulates the Internet connection in a PPP connection to provide the ISP more control, and/or Ethernet may be delivered on a tagged port.
answered 4 hours ago
davidgo
42.1k75187
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
add a comment |
Our method should be feasible.
For example, the following case is Cisco firewall configuration pppoe dialing and NAT. We can try to set according to the example.
We need to use 2 ports on the firewall, such as FastEthernet0/0 and FastEthernet0/1. We connect FastEthernet0/1 to the network operator network, and the configuration method is based on the IP or pppoe provided by the operator.
We connect FastEthernet0/0 to the computer and configure FastEthernet0/0 as a Layer 3 interface. For example, the IP address is 192.168.43.254 and the subnet mask is 255.255.255.0. we configure the FastEthernet0/0 as inside.
Create and configure interface Dialer1. We configure the Dialer1 as outside.
Configure a static route on the firewall, 0.0.0.0 0.0.0.0, and the egress of the static route is Interface Dialer1.
Configure NAT ip nat inside source list 1 interface Dialer1 overload.
Set the computer to an IP address of 192.168.43.* (* can be 1-253). The subnet mask is 255.255.255.0. The gateway is 192.168.43.254.
answered 1 hour ago
Daisy Zhou
611114
add a comment |
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2 Answers
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active
oldest
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2 Answers
2
active
oldest
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active
oldest
votes
If your "wall" output is really Ethernet which is possible if your "wall" is a fibre media convertor or Ethernet wired appartment (and not dsl for example) then it is technically possible to plug a PC into it directly, but, if you need to ask the question, doing do is probably a bad idea because -
It can directly expose your computer to the Internet, allowing remote computers to scan, fingerprint and likely exploit it - one side effect of NAT in routers is that it largely prevents this.
It prevents more then 1 device getting online (unless you turn your PC into a router.)
It may well not work without tricky configuration depending on the ISP configuration - for example pppoe encapsulates the Internet connection in a PPP connection to provide the ISP more control, and/or Ethernet may be delivered on a tagged port.
answered 4 hours ago
davidgo
42.1k75187
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
add a comment |
If your "wall" output is really Ethernet which is possible if your "wall" is a fibre media convertor or Ethernet wired appartment (and not dsl for example) then it is technically possible to plug a PC into it directly, but, if you need to ask the question, doing do is probably a bad idea because -
It can directly expose your computer to the Internet, allowing remote computers to scan, fingerprint and likely exploit it - one side effect of NAT in routers is that it largely prevents this.
It prevents more then 1 device getting online (unless you turn your PC into a router.)
It may well not work without tricky configuration depending on the ISP configuration - for example pppoe encapsulates the Internet connection in a PPP connection to provide the ISP more control, and/or Ethernet may be delivered on a tagged port.
answered 4 hours ago
davidgo
42.1k75187
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
add a comment |
If your "wall" output is really Ethernet which is possible if your "wall" is a fibre media convertor or Ethernet wired appartment (and not dsl for example) then it is technically possible to plug a PC into it directly, but, if you need to ask the question, doing do is probably a bad idea because -
It can directly expose your computer to the Internet, allowing remote computers to scan, fingerprint and likely exploit it - one side effect of NAT in routers is that it largely prevents this.
It prevents more then 1 device getting online (unless you turn your PC into a router.)
It may well not work without tricky configuration depending on the ISP configuration - for example pppoe encapsulates the Internet connection in a PPP connection to provide the ISP more control, and/or Ethernet may be delivered on a tagged port.
answered 4 hours ago
davidgo
42.1k75187
If your "wall" output is really Ethernet which is possible if your "wall" is a fibre media convertor or Ethernet wired appartment (and not dsl for example) then it is technically possible to plug a PC into it directly, but, if you need to ask the question, doing do is probably a bad idea because -
It can directly expose your computer to the Internet, allowing remote computers to scan, fingerprint and likely exploit it - one side effect of NAT in routers is that it largely prevents this.
It prevents more then 1 device getting online (unless you turn your PC into a router.)
It may well not work without tricky configuration depending on the ISP configuration - for example pppoe encapsulates the Internet connection in a PPP connection to provide the ISP more control, and/or Ethernet may be delivered on a tagged port.
answered 4 hours ago
davidgo
42.1k75187
answered 4 hours ago
davidgo
42.1k75187
answered 4 hours ago
davidgo
42.1k75187
answered 4 hours ago
davidgo
42.1k75187
42.1k75187
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
add a comment |
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
@LancePollard in that case it's most likely not etherenet - it is probably adsl or vdsl. One tell-tale sign is that the Jack is typically smaller then an Ethernet jack. If that's the case then the signal is analog rather then digital and plugging it into your Ethernet jack (it will fit, with room on the sides) is a bad idea. It also won't work with a standard modem (which can't recognise dsl signals). You may be able to purchase a specific dsl card for your computer, but it is harder to set up and has few advantages over a router. What model router do you have?
– davidgo
4 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
That comment was a bit confusing, because "a standard modem" pretty much means an ADSL modem around here. Maybe it's an European thing (cable modems are quite rare here).
– grawity
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
@Grawity - I see what you mean. To me (and I used to run an ISP in New Zealand in the days of dial up) a modem is something you use(d) for dial up connections, they could normally do faxing as well, and some acted as a pots line interface for asterisk PABX. You are right in as much as a DSL modem also converts analog to digital signals, but such devices are not commonly found on computers, whereas most old-enough computers have the kind of modem I was referring to.
– davidgo
3 hours ago
add a comment |
Our method should be feasible.
For example, the following case is Cisco firewall configuration pppoe dialing and NAT. We can try to set according to the example.
We need to use 2 ports on the firewall, such as FastEthernet0/0 and FastEthernet0/1. We connect FastEthernet0/1 to the network operator network, and the configuration method is based on the IP or pppoe provided by the operator.
We connect FastEthernet0/0 to the computer and configure FastEthernet0/0 as a Layer 3 interface. For example, the IP address is 192.168.43.254 and the subnet mask is 255.255.255.0. we configure the FastEthernet0/0 as inside.
Create and configure interface Dialer1. We configure the Dialer1 as outside.
Configure a static route on the firewall, 0.0.0.0 0.0.0.0, and the egress of the static route is Interface Dialer1.
Configure NAT ip nat inside source list 1 interface Dialer1 overload.
Set the computer to an IP address of 192.168.43.* (* can be 1-253). The subnet mask is 255.255.255.0. The gateway is 192.168.43.254.
answered 1 hour ago
Daisy Zhou
611114
add a comment |
Our method should be feasible.
For example, the following case is Cisco firewall configuration pppoe dialing and NAT. We can try to set according to the example.
We need to use 2 ports on the firewall, such as FastEthernet0/0 and FastEthernet0/1. We connect FastEthernet0/1 to the network operator network, and the configuration method is based on the IP or pppoe provided by the operator.
We connect FastEthernet0/0 to the computer and configure FastEthernet0/0 as a Layer 3 interface. For example, the IP address is 192.168.43.254 and the subnet mask is 255.255.255.0. we configure the FastEthernet0/0 as inside.
Create and configure interface Dialer1. We configure the Dialer1 as outside.
Configure a static route on the firewall, 0.0.0.0 0.0.0.0, and the egress of the static route is Interface Dialer1.
Configure NAT ip nat inside source list 1 interface Dialer1 overload.
Set the computer to an IP address of 192.168.43.* (* can be 1-253). The subnet mask is 255.255.255.0. The gateway is 192.168.43.254.
answered 1 hour ago
Daisy Zhou
611114
add a comment |
Our method should be feasible.
For example, the following case is Cisco firewall configuration pppoe dialing and NAT. We can try to set according to the example.
We need to use 2 ports on the firewall, such as FastEthernet0/0 and FastEthernet0/1. We connect FastEthernet0/1 to the network operator network, and the configuration method is based on the IP or pppoe provided by the operator.
We connect FastEthernet0/0 to the computer and configure FastEthernet0/0 as a Layer 3 interface. For example, the IP address is 192.168.43.254 and the subnet mask is 255.255.255.0. we configure the FastEthernet0/0 as inside.
Create and configure interface Dialer1. We configure the Dialer1 as outside.
Configure a static route on the firewall, 0.0.0.0 0.0.0.0, and the egress of the static route is Interface Dialer1.
Configure NAT ip nat inside source list 1 interface Dialer1 overload.
Set the computer to an IP address of 192.168.43.* (* can be 1-253). The subnet mask is 255.255.255.0. The gateway is 192.168.43.254.
answered 1 hour ago
Daisy Zhou
611114
Our method should be feasible.
For example, the following case is Cisco firewall configuration pppoe dialing and NAT. We can try to set according to the example.
We need to use 2 ports on the firewall, such as FastEthernet0/0 and FastEthernet0/1. We connect FastEthernet0/1 to the network operator network, and the configuration method is based on the IP or pppoe provided by the operator.
We connect FastEthernet0/0 to the computer and configure FastEthernet0/0 as a Layer 3 interface. For example, the IP address is 192.168.43.254 and the subnet mask is 255.255.255.0. we configure the FastEthernet0/0 as inside.
Create and configure interface Dialer1. We configure the Dialer1 as outside.
Configure a static route on the firewall, 0.0.0.0 0.0.0.0, and the egress of the static route is Interface Dialer1.
Configure NAT ip nat inside source list 1 interface Dialer1 overload.
Set the computer to an IP address of 192.168.43.* (* can be 1-253). The subnet mask is 255.255.255.0. The gateway is 192.168.43.254.
answered 1 hour ago
Daisy Zhou
611114
answered 1 hour ago
Daisy Zhou
611114
answered 1 hour ago
Daisy Zhou
611114
answered 1 hour ago
Daisy Zhou
611114
611114
add a comment |
add a comment |
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It depends. What is the plug or connection type at your "wall"? Is it a conventional home ISP connection, a business network connection, or something else entirely? If it is a "home" connection is it ADSL, VDSL or some other connection? We cannot really tell you what you can or cannot do with no information on what it actually is. Knowing what you are plugging cables into is pretty key information.
– Mokubai♦
3 hours ago