Re: Problems with Router/Firewall and cable modem
From: R Green - WoWsat.com (wow_at_wowsat.com)
Date: 07/24/03
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Date: Thu, 24 Jul 2003 03:40:19 GMT
This happens with my Telus home Internet here in Canada.
Whenever my ISP would have a hiccup (ie. the connection goes down), on
occasion, my SMC Barricade router will not be able to establish/grab an IP.
I had to re-boot the router and on some occasion re-boot both the ADSL modem
and router to get a connection.
Just my two cents.
R Green
Technical Support
--------------------
WoWsat.com
--------------------
"ParrotRob" <parrotrob@yahoo.com> wrote in message
news:D8xTa.36490$8g6.570202@news1.news.adelphia.net...
> OK, I've tried asking this in other places and no one seems to have an
> answer. Maybe some of you folks here might.
>
> I've been using Adelphia's "PowerLink" cable modem service for about three
> years now here at home. For obvious reasons, I installed a LinkSys router
> in between my computer(s) and the cable modem. Since that time I have
> replaced the LinkSys router with a DLink combo 4-port router and 802.11(g)
> wireless access point, and also installed a Netscreen 5XP firewall between
> the DLink and the modem. The Netscreen is primarily for work purposes
since
> I work from home and it allows me to set up VPN connections between my
home
> network and the office. I'm also using the Netscreen as my DHCP server
for
> the inside private network. So we have:
>
> Cable Modem ----> Netscreen ----> Router/AP ----> bunch of PC's
>
> No problem, right? Right - up until about a month ago when I lost my
> internet connection and couldn't get it back. In the process of
> troubleshooting, I eventually got down to plugging a single PC directly
into
> the cable modem - at which point it worked JUST FINE. To this day, that
is
> still the case.
>
> Unfortunately, since that is the only configuration that Adelphia
officially
> "supports", they refuse to acknowledge that there is a problem. However,
> the problem is that ANY DEVICE WHATSOEVER that is NOT a PC, refuses to get
> an address from my ISP. That goes for the Netscreen, the DLink's WAN
> interface, and the old LinkSys's WAN interface (yes I drug it back out to
> test it). Further investigation of the Netscreen, from the command
prompt,
> finds that when I put the untrusted interface in DHCP mode, the firewall
is
> actually able to SEE a DHCP server, and even the address/subnet/gateway
that
> is offered by the DHCP server - but for some reason the interface will not
> take that.
>
> Can any of you think of a reason why all of these network devices have
great
> difficulty connecting to the ISP via DHCP while a simple single computer
> does not?
>
> For the record, a close neighbor (on a different router, undoubtedly) has
> the same cable modem service, and all of this gear works JUST FINE at his
> place - yet the cable company refuses to acknowledge that the problem just
> MIGHT be on their end.
>
>
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