Detailed dialup network connection logging?

  • Thread starter Thread starter JJ
  • Start date Start date
Char said:
What I suggested the other day was for JJ to temporarily remove the
hardcoded DNS entries and let his dial-up ISP assign what they want
him to use. He could then make a note of those values and then make a
decision on whether or not to return to his hardcoded values.
Click to expand...

Oops, missed that. Once you got into ICS and routers in your reply, I
glanced over the rest since those didn't seem on target.
 
Oops, missed that. Once you got into ICS and routers in your reply, I
glanced over the rest since those didn't seem on target.
Click to expand...

Agreed. Major tangent there, with the router/ICS stuff. Mostly my
fault.
 
Char Jackson said:
Are you saying it's not good enough to get the ISP's DNS information
you're looking for, and then go back to your hardcoded DNS? If so,
there's something you're not telling us.
Click to expand...

Because I would need to dial it twice. You can't change a live dialup DNS
setting, since it's only in effect for the next conection session. Dialup is
different from LAN. LAN DNS can be changed on the fly and be applied
immediately.
 
VanguardLH said:
Not applicable. If you don't configure the connectoid to use the ISP's
DHCP server to have it assign you a DNS server then you don't get one
from them. You just use the one that you specified.
Click to expand...

I realize that DHCP is not even applicable for a dialup connection since
it don't have a DHCP setting. The PPP does the tasks like a DHCP for IP &
DNS assignment.

I merely thought that DHCP could be a way to the solution, since the
IPCONFIG shows this.

PPP adapter CDMA:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.191.37.188
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 10.191.37.188
DNS Servers . . . . . . . . . . . : 8.8.8.8
58.6.115.42
NetBIOS over Tcpip. . . . . . . . : Disabled

That IP address is dynamic / auto-assign, while the DNS are static /
fixed. It shows a DHCP entry and it's not enabled.

And yes, it's a private IP address. I'm using IPv4 and the public IP
address is different (probably my ISP firewall). In case you're wondering.

This are the screenshots of my the dialup connection settings.

http://i.imgur.com/qPdhi.png
 
JJ said:
Because I would need to dial it twice. You can't change a live dialup
DNS
setting, since it's only in effect for the next conection session.
Dialup is
different from LAN. LAN DNS can be changed on the fly and be applied
immediately.
Click to expand...

I've been reading this thread, and at this point, I cannot determine
what it is you actually want to do, and why. You've been told how to
find your ISPs DNS server address.... by connecting without static
addresses and viewing what's assigned. What else is it you are trying
to do, exactly? Give complete information on what your goal is, please!
 
Because I would need to dial it twice. You can't change a live dialup DNS
setting, since it's only in effect for the next conection session. Dialup is
different from LAN. LAN DNS can be changed on the fly and be applied
immediately.
Click to expand...

Your dial-up ISP doesn't push random DNS IP's to you upon every
connection. The DNS IP's that they push today are probably the same as
what they've been using for years, and likewise probably the same as
what they'll use for the foreseeable future. This isn't a test that
you need to do more than once. Do it once, make a note of their DNS
IP's, and you're done.
 
glee said:
I've been reading this thread, and at this point, I cannot determine
what it is you actually want to do, and why. You've been told how to
find your ISPs DNS server address.... by connecting without static
addresses and viewing what's assigned. What else is it you are trying
to do, exactly? Give complete information on what your goal is, please!
Click to expand...

The information I need is pretty simple:
Get or record the DNS server addresses that are offered at the time my
dialup is connected. They must not be retrived from other sources. e.g.:
NSLOOKUP.

Dialup details and "rules":

1. Once the dialup is connected, it must not be disconnected. Even just to
retrieve the offered DNS information.

2. Dialup connection is using static DNS (my custom DNS): Google DNS and
one from other ISP. This must not be changed at the start of dialup
connection. Also see below acceptable alternative solution.

3. Connection is still using IPv4. Switching to IPv6 is not applicable.

4. Probably due to IPv4, the dialup has no pulic IP. It IP is always
10.x.x.x. Having no public IP is not a problem nor I have plan to get one.

5. Probably also due to IPv4, the offered DNS when using dynamic DNS are
also 10.x.x.x (this is why NSLOOKUP is not applicable). The 10.x.x.x DNS
are also seem dynamic (varies more than just 2 different IPs). It's like
the 10.x.x.x DNS are unique for each dialup connection session.

The problem:
Due to static DNS, the offered DNS addresses are ignored and deleted.
There seems to be no record/log about it.

Other acceptable alternative solution:
Before connecting, set the dialup to use dynamic DNS (auto DNS). Once
conected, get the offerred DNS (that are currently in use/assigned) via
IPCONFIG. Then somehow change current connection session DNS setting (not
the permanent one; i.e.: registry) to use my custom DNS. However, I don't
how to change the DNS and apply it without disconnecting the dialup
(remember that the dialup must not be disconnected).

Why I need to do this:
I simply don't trust my ISP DNS. I will only use them as the very last
resort (as backup of a backup via manual DNS query).
 
The information I need is pretty simple:
Get or record the DNS server addresses that are offered at the time my
dialup is connected. They must not be retrived from other sources. e.g.:
NSLOOKUP.

Dialup details and "rules":

1. Once the dialup is connected, it must not be disconnected. Even just to
retrieve the offered DNS information.

2. Dialup connection is using static DNS (my custom DNS): Google DNS and
one from other ISP. This must not be changed at the start of dialup
connection. Also see below acceptable alternative solution.

3. Connection is still using IPv4. Switching to IPv6 is not applicable.

4. Probably due to IPv4, the dialup has no pulic IP. It IP is always
10.x.x.x. Having no public IP is not a problem nor I have plan to get one.

5. Probably also due to IPv4, the offered DNS when using dynamic DNS are
also 10.x.x.x (this is why NSLOOKUP is not applicable). The 10.x.x.x DNS
are also seem dynamic (varies more than just 2 different IPs). It's like
the 10.x.x.x DNS are unique for each dialup connection session.

The problem:
Due to static DNS, the offered DNS addresses are ignored and deleted.
There seems to be no record/log about it.

Other acceptable alternative solution:
Before connecting, set the dialup to use dynamic DNS (auto DNS). Once
conected, get the offerred DNS (that are currently in use/assigned) via
IPCONFIG. Then somehow change current connection session DNS setting (not
the permanent one; i.e.: registry) to use my custom DNS. However, I don't
how to change the DNS and apply it without disconnecting the dialup
(remember that the dialup must not be disconnected).

Why I need to do this:
I simply don't trust my ISP DNS. I will only use them as the very last
resort (as backup of a backup via manual DNS query).
Click to expand...

What are you hoping to accomplish? Your "why I need to do this"
section is woefully lacking. Several of the other sections are
likewise woefully lacking, but I'm most interested in the last part.
You've indicated that you've already retrieved your ISP's DNS IP's but
you want to do it again for some reason that you haven't mentioned. If
it's so important to get those IP's while not disturbing a dial-up
session already in progress, get a second computer, put a modem in it,
get a second phone line, and go to town with it.

The more you "explain" what you're trying to do, the less sense it
makes.
 
JJ said:
The information I need is pretty simple: Get or record the DNS server
addresses that are offered at the time my dialup is connected. They
must not be retrived from other sources. e.g.: NSLOOKUP.
Click to expand...

How many DNS servers do you think your ISP has to provide to you?
While the ISP may have several DNS servers, that would be for regional
assignment for load balancing on their servers for all their users.
You aren't supposed to use a DNS server outside their region to which
you belong so you always get the same DNS server from them. The first
time you find out what DNS server they give you will be the same DNS
server they always give you.

Every time you open their door, it's the same person standing there no
matter how many times you shut and close the door to go look again.
The problem: Due to static DNS, the offered DNS addresses are ignored
and deleted. There seems to be no record/log about it.
Click to expand...

Yep, just as you have been told before. Since your host was told what
DNS server(s) to use, it won't ask your ISP for an upstream DNS server.
Why I need to do this: I simply don't trust my ISP DNS. I will only
use them as the very last resort (as backup of a backup via manual
DNS query).
Click to expand...

So why do you care what they *might* assign if you did NOT use
statically assigned DNS server(s)? You already know how to find out
which ONE they assign to you so you know which ONE to add last to your
list of static DNS servers in the TCP/IP config of your dial-up
connectoid.

Seems you're deliberately dragging out this discussion when you have
been told several times how to find out what your ISP would give you if
you allowed dynamic assignment. The reason that others cannot figure
out what "extra information" you need is that there isn't any and for
some odd reason you think there is. Let it go. You already have been
told how to get the info you want.
 
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