IP Address and FTP

My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine. When I get an IP
address starting 24, FTP stops working and sometimes newsgroups. My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes. Any advice or insight appreciated.

Ben

On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes.Â* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?

--
best regards,

Neil

On Wed, 23 Aug 2017 14:52:15 -0400, Ben Myers
wrote:

My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine.

So far, so good.

When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.

Is this a name brand ISP or some random guy who set up a WISP in a
valley somewhere? If it's a well known ISP, then FTP and NNTP don't just
stop working. When they "don't work" can you still ping them? That tells
you whether it's a connectivity issue or a (Layer 7) protocol issue.

My
provider only allows FTP and newsgroups on my home computers, so I

Hmmm, so it's not a nationally known ISP. It's some kind of local
provider, probably run out of someone's home, right? Real ISPs don't
care which IP protocols you use.

suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes. Any advice or insight appreciated.

Name the ISP.
Name the FTP destination.
Name the NNTP destination. Probably Newsdawg/Newsguy?

What does your local network look like? What equipment sits between the
ISP's wall jack and your PC?

This is one of those things that takes 3 minutes to resolve in person,
but takes forever via Q&A.

On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.Â* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?


Here's the deal. Before I started using a router, I had my computer
connected directly to the cable modem. I dual-booted Windows and Linux.
Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work. I
now connect through a router, which always gets an address starting with
24. I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

Ben

On 8/23/2017 6:22 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 14:52:15 -0400, Ben Myers
wrote:

My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine.

So far, so good.

When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.

Is this a name brand ISP or some random guy who set up a WISP in a
valley somewhere? If it's a well known ISP, then FTP and NNTP don't just
stop working. When they "don't work" can you still ping them? That tells
you whether it's a connectivity issue or a (Layer 7) protocol issue.

My
provider only allows FTP and newsgroups on my home computers, so I

Hmmm, so it's not a nationally known ISP. It's some kind of local
provider, probably run out of someone's home, right? Real ISPs don't
care which IP protocols you use.

suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes. Any advice or insight appreciated.

Name the ISP.
Name the FTP destination.
Name the NNTP destination. Probably Newsdawg/Newsguy?

What does your local network look like? What equipment sits between the
ISP's wall jack and your PC?

This is one of those things that takes 3 minutes to resolve in person,
but takes forever via Q&A.


Antietam Cable in Hagerstown, MD.

Ben

On Wed, 23 Aug 2017 18:47:28 -0400, Ben Myers
wrote:

On 8/23/2017 6:22 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 14:52:15 -0400, Ben Myers
wrote:

My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine.

So far, so good.

When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.

Is this a name brand ISP or some random guy who set up a WISP in a
valley somewhere? If it's a well known ISP, then FTP and NNTP don't just
stop working. When they "don't work" can you still ping them? That tells
you whether it's a connectivity issue or a (Layer 7) protocol issue.

My
provider only allows FTP and newsgroups on my home computers, so I

Hmmm, so it's not a nationally known ISP. It's some kind of local
provider, probably run out of someone's home, right? Real ISPs don't
care which IP protocols you use.

suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes. Any advice or insight appreciated.

Name the ISP.
Name the FTP destination.
Name the NNTP destination. Probably Newsdawg/Newsguy?

What does your local network look like? What equipment sits between the
ISP's wall jack and your PC?

This is one of those things that takes 3 minutes to resolve in person,
but takes forever via Q&A.


Antietam Cable in Hagerstown, MD.

OK, thanks. Good luck then. You didn't answer any of my other questions
so I guess you're good to go.

On Wed, 23 Aug 2017 18:46:28 -0400, Ben Myers
wrote:

On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.* Whenever I get an IP
address starting with 69, everything works fine.* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?


Here's the deal. Before I started using a router, I had my computer
connected directly to the cable modem. I dual-booted Windows and Linux.
Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work. I
now connect through a router, which always gets an address starting with
24. I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

If you want a different IP address from a cable provider, you have to
present a different MAC address to the modem (after rebooting it). In
your router, change the WAN MAC to the MAC of your Linux NIC and you
might get your old 69.* address again.

Change the WAN MAC in the router.
Power down the cable modem and the router.
Power up the cable modem and let it stabilize.
Power up the router and let it stabilize.

When the router boots, the cable modem sees the router's WAN MAC and
uses it to figure out which IP address to give you. If it recognizes the
MAC and the associated IP is still available, you'll get it. If it
doesn't recognize the MAC or the associated IP has been given to someone
else, you'll get a new IP from one of their pools. Repeat, as necessary,
until you get what you want.

Note: None of this is actually necessary. You have a different problem
entirely.

On 8/23/2017 6:59 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 18:47:28 -0400, Ben Myers
wrote:

On 8/23/2017 6:22 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 14:52:15 -0400, Ben Myers
wrote:

My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine.

So far, so good.

When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.

Is this a name brand ISP or some random guy who set up a WISP in a
valley somewhere? If it's a well known ISP, then FTP and NNTP don't just
stop working. When they "don't work" can you still ping them? That tells
you whether it's a connectivity issue or a (Layer 7) protocol issue.

My
provider only allows FTP and newsgroups on my home computers, so I

Hmmm, so it's not a nationally known ISP. It's some kind of local
provider, probably run out of someone's home, right? Real ISPs don't
care which IP protocols you use.

suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even temporarily
for test purposes. Any advice or insight appreciated.

Name the ISP.
Name the FTP destination.
Name the NNTP destination. Probably Newsdawg/Newsguy?

What does your local network look like? What equipment sits between the
ISP's wall jack and your PC?

This is one of those things that takes 3 minutes to resolve in person,
but takes forever via Q&A.


Antietam Cable in Hagerstown, MD.

OK, thanks. Good luck then. You didn't answer any of my other questions
so I guess you're good to go.

I think my ISP uses Supernews, but as long as I use my home computers, I
don't even have to log in. When newsgroups stop working, I get a login
prompt, but since I don't a username and password, I can't log in. With
FTP, I have a username and password, but when it's not working, I don't
get the login prompt and after about fifteen seconds I am disconnect.
The FTP destination is simply "members.myactv.net".

Ben

On 8/23/2017 7:06 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 18:46:28 -0400, Ben Myers
wrote:

On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.Â* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?


Here's the deal. Before I started using a router, I had my computer
connected directly to the cable modem. I dual-booted Windows and Linux.
Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work. I
now connect through a router, which always gets an address starting with
24. I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

If you want a different IP address from a cable provider, you have to
present a different MAC address to the modem (after rebooting it). In
your router, change the WAN MAC to the MAC of your Linux NIC and you
might get your old 69.* address again.

The router is a Western Digital My Net N600 and I see no way to change
the WAN MAC address.

Change the WAN MAC in the router.
Power down the cable modem and the router.
Power up the cable modem and let it stabilize.
Power up the router and let it stabilize.

When the router boots, the cable modem sees the router's WAN MAC and
uses it to figure out which IP address to give you. If it recognizes the
MAC and the associated IP is still available, you'll get it. If it
doesn't recognize the MAC or the associated IP has been given to someone
else, you'll get a new IP from one of their pools. Repeat, as necessary,
until you get what you want.

Note: None of this is actually necessary. You have a different problem
entirely.

You seem to be suggesting that Linux was getting a different range of IP
addresses because it was spoofing the NIC's MAC address. If this is
correct, is there any way to do the same thing using Windows 10?

Ben

On 8/23/2017 6:46 PM, Ben Myers wrote:
On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.Â* Any advice or insight appreciated.

Ben
Â*
It sounds like the two IP addresses are used by your modem for
different purposes, such as one for general access to the internet by
your computers and one for some other use, such as access to the modem
from your ISP. When you access the modem from your computer, you
should be either be assigned a local IP address or have a fixed
address in the same range (e.g. 192.168...). How (and why) are you
switching from one to the other?


Here's the deal.Â* Before I started using a router, I had my computer
connected directly to the cable modem.Â* I dual-booted Windows and Linux.
Â*Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work.Â* I
now connect through a router, which always gets an address starting with
24.Â* I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

Ben

I'm curious as to why the cable modem's assigning those numbers in the
first place. Do you know your ISP's DNS IP, and could it be the address
beginning with 24? Have you looked into the modem's configuration, made
any changes to it, etc.?

--
best regards,

Neil

On 8/23/2017 9:07 PM, Neil wrote:
On 8/23/2017 6:46 PM, Ben Myers wrote:
On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says
they can't switch me to an IP address starting with 69, not even
temporarily for test purposes.Â* Any advice or insight appreciated.

Ben
Â*
It sounds like the two IP addresses are used by your modem for
different purposes, such as one for general access to the internet by
your computers and one for some other use, such as access to the
modem from your ISP. When you access the modem from your computer,
you should be either be assigned a local IP address or have a fixed
address in the same range (e.g. 192.168...). How (and why) are you
switching from one to the other?


Here's the deal.Â* Before I started using a router, I had my computer
connected directly to the cable modem.Â* I dual-booted Windows and
Linux. Â*Â*Typically, Windows would get an IP address starting with 24
and no FTP and Linux would get an address starting with 69 and FTP
would work.Â* I now connect through a router, which always gets an
address starting with 24.Â* I no longer have the dual-boot computer and
I just tried bypassing the router, got an address starting with 24 and
lost newsgroups as well.

Ben

I'm curious as to why the cable modem's assigning those numbers in the
first place. Do you know your ISP's DNS IP, and could it be the address
beginning with 24? Have you looked into the modem's configuration, made
any changes to it, etc.?

If you are talking about the DNS server address, it's 8.8.8.8.
Incidentally, I still have the dual-boot computer with it's failing
memory, so I booted it up under Linux through the router. As expected,
no FTP. I powererd down the cable modem, bypassed the router, restarted
the modem, all without shutting down the Linux computer and it was
assigned an IP address starting with 69, with FTP working normally.
Seems like pretty solid evidence that the FTP problem has something to
do with the IP address.

Ben

On Wed, 23 Aug 2017 20:40:09 -0400, Ben Myers
wrote:

On 8/23/2017 7:06 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 18:46:28 -0400, Ben Myers
wrote:

On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.* Whenever I get an IP
address starting with 69, everything works fine.* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?


Here's the deal. Before I started using a router, I had my computer
connected directly to the cable modem. I dual-booted Windows and Linux.
Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work. I
now connect through a router, which always gets an address starting with
24. I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

If you want a different IP address from a cable provider, you have to
present a different MAC address to the modem (after rebooting it). In
your router, change the WAN MAC to the MAC of your Linux NIC and you
might get your old 69.* address again.

The router is a Western Digital My Net N600 and I see no way to change
the WAN MAC address.

Is this your router?
http://products.wdc.com/library/UM/ENG/4779-705072.pdf
On about page 32, they talk about being able to clone your PC's MAC
address. I don't see a screenshot, so I don't know if you're limited to
cloning or if you can specify a MAC.

Change the WAN MAC in the router.
Power down the cable modem and the router.
Power up the cable modem and let it stabilize.
Power up the router and let it stabilize.

When the router boots, the cable modem sees the router's WAN MAC and
uses it to figure out which IP address to give you. If it recognizes the
MAC and the associated IP is still available, you'll get it. If it
doesn't recognize the MAC or the associated IP has been given to someone
else, you'll get a new IP from one of their pools. Repeat, as necessary,
until you get what you want.

Note: None of this is actually necessary. You have a different problem
entirely.

You seem to be suggesting that Linux was getting a different range of IP
addresses because it was spoofing the NIC's MAC address. If this is
correct, is there any way to do the same thing using Windows 10?

Lots of 3rd party tools available, but you don't need them. Here's one
link of many that Google came up with just now.
http://windowsreport.com/mac-address...er-windows-10/

Remember, if you change your MAC address and lose connectivity, a reboot
(modem, router, PC) will normally straighten it all out. That lets each
device (re)learn about the devices that want to connect to it.

On Wed, 23 Aug 2017 21:07:53 -0400, Neil wrote:

On 8/23/2017 6:46 PM, Ben Myers wrote:
On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.* Whenever I get an IP
address starting with 69, everything works fine.* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.* Any advice or insight appreciated.

Ben
*
It sounds like the two IP addresses are used by your modem for
different purposes, such as one for general access to the internet by
your computers and one for some other use, such as access to the modem
from your ISP. When you access the modem from your computer, you
should be either be assigned a local IP address or have a fixed
address in the same range (e.g. 192.168...). How (and why) are you
switching from one to the other?


Here's the deal.* Before I started using a router, I had my computer
connected directly to the cable modem.* I dual-booted Windows and Linux.
*Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work.* I
now connect through a router, which always gets an address starting with
24.* I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

Ben

I'm curious as to why the cable modem's assigning those numbers in the
first place.

They probably bought a little block of addresses in one of the two
ranges, started to outgrow it, so they bought a second block, which
happened to be in the other range. That part isn't unusual.

Note that cable modems don't assign IP addresses, but that's a
technicality.

Do you know your ISP's DNS IP, and could it be the address
beginning with 24?

They do have a couple of DNS servers at 24.89.0.57 and .58, and probably
others, but I don't see how that's relevant. You can use any DNS server
in the world, as long as you have a route to it. Are you thinking he has
a DNS issue? That's certainly possible. So far he hasn't mentioned any
tests he might have done to rule that out.

Have you looked into the modem's configuration, made
any changes to it, etc.?

It would be a rare cable modem that allows a customer to make config
changes, but see above. The modem is barely involved in the assignment
of a customer IP.

On 8/23/2017 9:40 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 20:40:09 -0400, Ben Myers
wrote:

On 8/23/2017 7:06 PM, Char Jackson wrote:
On Wed, 23 Aug 2017 18:46:28 -0400, Ben Myers
wrote:

On 8/23/2017 4:58 PM, Neil wrote:
On 8/23/2017 2:52 PM, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69.Â* Whenever I get an IP
address starting with 69, everything works fine.Â* When I get an IP
address starting 24, FTP stops working and sometimes newsgroups.Â* My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network.Â* Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes.Â* Any advice or insight appreciated.

Ben

It sounds like the two IP addresses are used by your modem for different
purposes, such as one for general access to the internet by your
computers and one for some other use, such as access to the modem from
your ISP. When you access the modem from your computer, you should be
either be assigned a local IP address or have a fixed address in the
same range (e.g. 192.168...). How (and why) are you switching from one
to the other?


Here's the deal. Before I started using a router, I had my computer
connected directly to the cable modem. I dual-booted Windows and Linux.
Typically, Windows would get an IP address starting with 24 and no FTP
and Linux would get an address starting with 69 and FTP would work. I
now connect through a router, which always gets an address starting with
24. I no longer have the dual-boot computer and I just tried bypassing
the router, got an address starting with 24 and lost newsgroups as well.

If you want a different IP address from a cable provider, you have to
present a different MAC address to the modem (after rebooting it). In
your router, change the WAN MAC to the MAC of your Linux NIC and you
might get your old 69.* address again.

The router is a Western Digital My Net N600 and I see no way to change
the WAN MAC address.

Is this your router?
http://products.wdc.com/library/UM/ENG/4779-705072.pdf
On about page 32, they talk about being able to clone your PC's MAC
address. I don't see a screenshot, so I don't know if you're limited to
cloning or if you can specify a MAC.

Change the WAN MAC in the router.
Power down the cable modem and the router.
Power up the cable modem and let it stabilize.
Power up the router and let it stabilize.

When the router boots, the cable modem sees the router's WAN MAC and
uses it to figure out which IP address to give you. If it recognizes the
MAC and the associated IP is still available, you'll get it. If it
doesn't recognize the MAC or the associated IP has been given to someone
else, you'll get a new IP from one of their pools. Repeat, as necessary,
until you get what you want.

Note: None of this is actually necessary. You have a different problem
entirely.

You seem to be suggesting that Linux was getting a different range of IP
addresses because it was spoofing the NIC's MAC address. If this is
correct, is there any way to do the same thing using Windows 10?

Lots of 3rd party tools available, but you don't need them. Here's one
link of many that Google came up with just now.
http://windowsreport.com/mac-address...er-windows-10/

Remember, if you change your MAC address and lose connectivity, a reboot
(modem, router, PC) will normally straighten it all out. That lets each
device (re)learn about the devices that want to connect to it.

I still have the dual-boot computer with it's failing memory and I
managed to get it started under Linux. Loaded the router configuration
page, cloned the NIC's address, rebooted the modem and my Windows 10
computer and I got an address starting with 69 with working FTP and
newsgroups. Thanks to everyone and especially you, Char.

Ben

On 23/08/2017 19:52, Ben Myers wrote:
My Internet provided has two sets of IP addresses available, one set
starting with 24 and the other starting with 69. Whenever I get an IP
address starting with 69, everything works fine. When I get an IP
address starting 24, FTP stops working and sometimes newsgroups. My
provider only allows FTP and newsgroups on my home computers, so I
suspect the system thinks I am trying to access them from another
network. Tech support insists the problem is on my end and says they
can't switch me to an IP address starting with 69, not even
temporarily for test purposes. Any advice or insight appreciated.

Ben

Not sure whose FTP server you are trying to use. If you are talking
about your ISPs FTP server on a particular IP address then they might
have not installed the server at that IP address. However, if you are
talking about third party FTP server then it doesn't matter which IP
address you use because the 3rd party must have installed the server for
public to use. To give you an example, try using this in FileZilla:

ftp://ftp.techsmith.com

Then go to pub/products

See if this works for you.

You don't need username or password to access this so just leave it blank.

As to newsgroup, again it depends. For third party connections it makes
no difference so you could use

news.mozilla.org

To check it out.

You might have problems connecting to your ISPs provision but this could
be because they might not have on a particular IP address. Newsgroups
are becoming obsolete by the day as old people die and new young ones
don't bother with them.



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