I am running XP, currently have a networkeverywhere(linksys) router.
The problem is that when power is lost to the router all the DHCP
clients are assigned different ips from before the loss of power. I am
guessing the first computer it sees is the one it gives the first ip
to.. and so on.

This causes a problem because I have port forwarding enabled and when
the router restarts after power loss there is no gaurantee the same
lan computer will get the same DHCP ip.

Is there a home router that will allow me to specify a DHCP address to
a MAC address this way the lan computer will always get the predefined
DHCP ip?

Amit

Netgear FR114P can do it.

"amit das" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I am running XP, currently have a networkeverywhere(linksys) router.
> The problem is that when power is lost to the router all the DHCP
> clients are assigned different ips from before the loss of power. I am
> guessing the first computer it sees is the one it gives the first ip
> to.. and so on.
>
> This causes a problem because I have port forwarding enabled and when
> the router restarts after power loss there is no gaurantee the same
> lan computer will get the same DHCP ip.
>
> Is there a home router that will allow me to specify a DHCP address to
> a MAC address this way the lan computer will always get the predefined
> DHCP ip?
>
> Amit

I forgot to mention that I get a dynmically allocated
ip address from my cable provider... so is it still possible to
statically assign my lan pcs even when the main ip address, and dns
keep changing? I was told to
keep all my windows tcp/ip settings to "obtain
automatically"

amit

James Knott <(E-Mail Removed)> wrote in message news:<a3fLa.3460$(E-Mail Removed)>...
> amit das wrote:
>
> > I am running XP, currently have a networkeverywhere(linksys) router.
> > The problem is that when power is lost to the router all the DHCP
> > clients are assigned different ips from before the loss of power. I am
> > guessing the first computer it sees is the one it gives the first ip
> > to.. and so on.
> >
> > This causes a problem because I have port forwarding enabled and when
> > the router restarts after power loss there is no gaurantee the same
> > lan computer will get the same DHCP ip.
> >
> > Is there a home router that will allow me to specify a DHCP address to
> > a MAC address this way the lan computer will always get the predefined
> > DHCP ip?
> >
> > Amit
>
> Is there any reason, why you don't just assign static addresses to those
> computers? Select addresses outside of the range used by the dhcp server.

soho routefinder from Multi-Tech can do this. http://www.multitech.com

"amit das" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I am running XP, currently have a networkeverywhere(linksys) router.
> The problem is that when power is lost to the router all the DHCP
> clients are assigned different ips from before the loss of power. I am
> guessing the first computer it sees is the one it gives the first ip
> to.. and so on.
>
> This causes a problem because I have port forwarding enabled and when
> the router restarts after power loss there is no gaurantee the same
> lan computer will get the same DHCP ip.
>
> Is there a home router that will allow me to specify a DHCP address to
> a MAC address this way the lan computer will always get the predefined
> DHCP ip?
>
> Amit

(E-Mail Removed) (amit das) wrote in
news:(E-Mail Removed):

> I forgot to mention that I get a dynmically allocated
> ip address from my cable provider... so is it still possible to
> statically assign my lan pcs even when the main ip address, and dns
> keep changing? I was told to
> keep all my windows tcp/ip settings to "obtain
> automatically"
>
> amit
>
<snip>

You were told that by a cable provider who was assuming that you had a
computer connected directly to the modem -- or a tech who doesn't know
very much about how a LAN works. The WAN side of you router has to be set
up to get an IP from the cable system (sounds like it is). You can set up
the LAN side however you want. So yes, you can assign static local IP's to
your computers.

Ok. as I try to change my xp tcp/ip conf. from obtain auto. to fixed
ip, XP asks for a DNS server, it seems mandatory. after restart the
router now finds my fixed ip computer but the computer cannot connect
to the internet due to lack of dns settings. Does this mean I have to
set the DNS on each computer. Suppose my cable provider changes dns
servers on me.. does this mean I have to change each computers tcp/ip
settings... this is what I do not want to do!

amit

James Knott <(E-Mail Removed)> wrote in message news:<3RlLa.4137$(E-Mail Removed)>...
> amit das wrote:
>
> > I forgot to mention that I get a dynmically allocated
> > ip address from my cable provider... so is it still possible to
> > statically assign my lan pcs even when the main ip address, and dns
> > keep changing? I was told to
> > keep all my windows tcp/ip settings to "obtain
> > automatically"
> >
>
> Yes. The addresses on your local lan have absolutely nothing to do with
> your IP as assigned by the cable company. I built my own firewall/router,
> using Linux and an old PC. The cable side is dhcp, but my home network is
> completely static. I've also got it set up, so that it will e-mail me,
> whenever my ip changes.

amit das wrote:

> Suppose my cable provider changes dns
> servers on me.. does this mean I have to change each computers tcp/ip
> settings... this is what I do not want to do!

It's unlikely that will happen very often.

--

Fundamentalism is fundamentally wrong.

To reply to this message, replace everything to the left of "@" with
james.knott.

Why not use static ip's at the pc level?

"amit das" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
: I am running XP, currently have a networkeverywhere(linksys) router.
: The problem is that when power is lost to the router all the DHCP
: clients are assigned different ips from before the loss of power. I am
: guessing the first computer it sees is the one it gives the first ip
: to.. and so on.
:
: This causes a problem because I have port forwarding enabled and when
: the router restarts after power loss there is no gaurantee the same
: lan computer will get the same DHCP ip.
:
: Is there a home router that will allow me to specify a DHCP address to
: a MAC address this way the lan computer will always get the predefined
: DHCP ip?
:
: Amit

"amit das" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Ok. as I try to change my xp tcp/ip conf. from obtain auto. to fixed
> ip, XP asks for a DNS server, it seems mandatory. after restart the
> router now finds my fixed ip computer but the computer cannot connect
> to the internet due to lack of dns settings. Does this mean I have to
> set the DNS on each computer. Suppose my cable provider changes dns
> servers on me.. does this mean I have to change each computers tcp/ip
> settings... this is what I do not want to do!

This is dependent on the router capabilities. I have an Addtron (no longer
in business) which can serve as a DNS proxy for the lan. With it, you
simply point DNS on the client machines to the router IP (same address as
the gateway). If the requested data is not found, the router proxy fetches
the info and caches it.

JW

D-Link DI-713P Wireless Access Point / Router also supports MAC based DHCP
assignment.

By the way for those who suggest static IP address as a solution, consider
the case where a laptop needs to be used at different locations, and must
have different IP addresses. And the location authanticate a computer by a
specific MAC address.

dk.


"amit das" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I am running XP, currently have a networkeverywhere(linksys) router.
> The problem is that when power is lost to the router all the DHCP
> clients are assigned different ips from before the loss of power. I am
> guessing the first computer it sees is the one it gives the first ip
> to.. and so on.
>
> This causes a problem because I have port forwarding enabled and when
> the router restarts after power loss there is no gaurantee the same
> lan computer will get the same DHCP ip.
>
> Is there a home router that will allow me to specify a DHCP address to
> a MAC address this way the lan computer will always get the predefined
> DHCP ip?
>
> Amit