ICS and wrong gateway

[Steve N.]

I use ICS with three Win2K Pro SP3 PCs. A couple of days ago I was
having dialup problems (which turned out to be the ISP's problem) and in
trouble shooting I put the modem on a different PC and set it as the ICS
gateway. After I determined it was the ISP having the problem I put the
modem back on the original ICS host PC and set it up as the gateway
again and all was well for two or three days. This morning one of the
PCs decided to change its default gateway to the address of the PC I'd
put the modem on for trouble shooting (which is 192.168.0.162). I
suppose it is doing some sort of computer name resolving for the gateway
rather than just using the IP address for resolution and I'd like to
figure out how to stop that. I went through the registry, found and
corrected erroneous gateway addresses, restarted and it made no
difference. I then went into Advanced TCP/IP settings and manually added
the correct address for the gateway and it worked but IPCONFIG still
shows DHCP server as 192.168.0.162 (the gateway address is correct now -
192.168.0.1). It works fine now but I suspect it may revert to the
incorrect gateway again at random.

I've run into this before and as I recall last time it happened I
finally got it working by shutting all the PCs off(and the ethernet
switch because it retains addresses in memory and sometimes needs to
power cycle to clear them), reconfiguring TCP/IP and restarting
everything several times but that is a hassle and I don't believe it
should be necessary to twiddle bits all fricking day in order to get it
working again. I'm not a neophyte and I've read up on ICS in the M$ KB
and I do understand how it works but I'd like to know why and how to
prevent IP settings from reverting to cached info randomly like this.
Anyone have some clues/ideas? Perhaps I am overlooking something?

TIA and happy 4th!

Steve

 

[Marko]

if you have high speed then its easier to get a cheap router to do the
work for you, it logs in to your isp.

I use ICS with three Win2K Pro SP3 PCs. A couple of days ago I was
having dialup problems (which turned out to be the ISP's problem) and in
trouble shooting I put the modem on a different PC and set it as the ICS
gateway. After I determined it was the ISP having the problem I put the
modem back on the original ICS host PC and set it up as the gateway
again and all was well for two or three days. This morning one of the
PCs decided to change its default gateway to the address of the PC I'd
put the modem on for trouble shooting (which is 192.168.0.162). I
suppose it is doing some sort of computer name resolving for the gateway
rather than just using the IP address for resolution and I'd like to
figure out how to stop that. I went through the registry, found and
corrected erroneous gateway addresses, restarted and it made no
difference. I then went into Advanced TCP/IP settings and manually added
the correct address for the gateway and it worked but IPCONFIG still
shows DHCP server as 192.168.0.162 (the gateway address is correct now -
192.168.0.1). It works fine now but I suspect it may revert to the
incorrect gateway again at random.

I've run into this before and as I recall last time it happened I
finally got it working by shutting all the PCs off(and the ethernet
switch because it retains addresses in memory and sometimes needs to
power cycle to clear them), reconfiguring TCP/IP and restarting
everything several times but that is a hassle and I don't believe it
should be necessary to twiddle bits all fricking day in order to get it
working again. I'm not a neophyte and I've read up on ICS in the M$ KB
and I do understand how it works but I'd like to know why and how to
prevent IP settings from reverting to cached info randomly like this.
Anyone have some clues/ideas? Perhaps I am overlooking something?

TIA and happy 4th!

Steve

--
Marko Jotic, MMCT Holdings Int. Inc.
"Common sense is anything but common".
From the notebooks of Lazarus Long. Robert A. Heinlein.
Handmade knives, antique designs, exotic materials at
http://www.knifeforging.com/

 

[Steve N.]

if you have high speed then its easier to get a cheap router to do the
work for you, it logs in to your isp.

Hi Marko, and thanks for the reply.

Yes, I know this but unfortunately high speed is not very affordable
here, although it is starting to look like the best alternative anyway.
They want close to $80/mo for 256Kb DSL! Not including a DSL modem even
- that's another $100 :/

Hopefully it will come down in price some more sooner or later. It
already has a bit, used to be over $80/mo just for 128Kb.

Steve

 

[Marko]

then I suggest you uninstall all ics related components in windows on
all the system, including network components, reboot, put them back in
and try fresh

I'll assume you are talking USD, wow that's a rip

pay about 40 us tax in for 1mb here in Canada with modem rental (not
really a modem)

Hi Marko, and thanks for the reply.

Yes, I know this but unfortunately high speed is not very affordable
here, although it is starting to look like the best alternative anyway.
They want close to $80/mo for 256Kb DSL! Not including a DSL modem even
- that's another $100 :/

Hopefully it will come down in price some more sooner or later. It
already has a bit, used to be over $80/mo just for 128Kb.

Steve

--
Marko Jotic, MMCT Holdings Int. Inc.
"Common sense is anything but common".
From the notebooks of Lazarus Long. Robert A. Heinlein.
Handmade knives, antique designs, exotic materials at
http://www.knifeforging.com/

 

[Steve N.]

then I suggest you uninstall all ics related components in windows on
all the system, including network components, reboot, put them back in
and try fresh

BTDT. For some silly reason Windows still tries to use the wrong gateway
address sometimes. I do get it to work ok after playing tiddlywinks with
settings for half the day, several restarts, and eventually it settles
down and behaves itself. I'm really more curious as to why, where and
how the OS caches this stuff and why it just doesn't do what I tell it
to do the first dang time. I've occaisionally had to hadrcode IP
addresses on all machines involved and that does work (but not
recommended by M$) but my thinking is I shouldn't have to go to these
extremes, it's just freaking IP addressing after all and I'm not doing
anything stupid (that I know of anyway).

Thanks again Marko,
Steve

 

[Marko]

One last shot before I go home, search the registry for the offending
info and delete it?

BTDT. For some silly reason Windows still tries to use the wrong gateway
address sometimes. I do get it to work ok after playing tiddlywinks with
settings for half the day, several restarts, and eventually it settles
down and behaves itself. I'm really more curious as to why, where and
how the OS caches this stuff and why it just doesn't do what I tell it
to do the first dang time. I've occaisionally had to hadrcode IP
addresses on all machines involved and that does work (but not
recommended by M$) but my thinking is I shouldn't have to go to these
extremes, it's just freaking IP addressing after all and I'm not doing
anything stupid (that I know of anyway).

Thanks again Marko,
Steve

--
Marko Jotic, MMCT Holdings Int. Inc.
"Common sense is anything but common".
From the notebooks of Lazarus Long. Robert A. Heinlein.
Handmade knives, antique designs, exotic materials at
http://www.knifeforging.com/

 

[Marko]

One last shot before I go home, look in th registry for the offending
info and delete it

BTDT. For some silly reason Windows still tries to use the wrong gateway
address sometimes. I do get it to work ok after playing tiddlywinks with
settings for half the day, several restarts, and eventually it settles
down and behaves itself. I'm really more curious as to why, where and
how the OS caches this stuff and why it just doesn't do what I tell it
to do the first dang time. I've occaisionally had to hadrcode IP
addresses on all machines involved and that does work (but not
recommended by M$) but my thinking is I shouldn't have to go to these
extremes, it's just freaking IP addressing after all and I'm not doing
anything stupid (that I know of anyway).

Thanks again Marko,
Steve

--
Marko Jotic, MMCT Holdings Int. Inc.
"Common sense is anything but common".
From the notebooks of Lazarus Long. Robert A. Heinlein.
Handmade knives, antique designs, exotic materials at
http://www.knifeforging.com/

 

[Steve N.]

One last shot before I go home, look in th registry for the offending
info and delete it

 

[Steve N.]

Sorry for the blank post...

One last shot before I go home, look in th registry for the offending
info and delete it

Did that. No difference. It's working for now using hard-coded IP and
gateway addresses but in the past that solution has not been a permanent
fix. I'll see in time.

Steve

 

[Steve N.]

I think I found it; I neglected to disable ICS on the other machine's
dialup properties.

Steve