Re: Static IP outside of router DHCP range

ohaya wrote:

I would very much like to fix the assignments to MAC addresses, since
each of my 8 video clients has a label with the Mac address printed on
it, and all 8 clients remain located in exactly the same network
locations regardless of when I reboot. The fact that they are, in most
cases, connected to switches fed from the router causes additional
confusion when the video server IP changes, since the switches appear to
"keep" old routing information for a while and sometimes require
rebooting also.

I have looked over my Linksys settings pretty carefully but have yet to
find a method to put hard-wired Mac addresses into this Linksys router.
I may switch to another router if I can be certain that it supports this
feature and also has the ability to route to a couple dozen devices
reliably.

MAC addresses, for both the server and for the clients, don't/shouldn't
change at all. A MAC address is associated with a network device, e.g.,
the network adapter, and is assigned/set by the device manufacturer when
they manufacture the device, so if you are saying that it is changing, I
don't understand that.

Not true. In Windows, go to Device Manager and look at the properties
for your network interface device (card or chip on mobo). You can set
whatever MAC address you want the OS to report. While the NIC has its
inbuilt hardcoded MAC address (of which some cards this can be
reprogrammed), what gets reported can be changed via the OS.

The OP obviously doesn't understand the replies. The static IP address
is NOT assigned at the router for a particular host. The router isn't
involved at all. The static IP address is defined in the TCP/IP
attributes defined on the host itself that chooses to use a static IP
address instead of using DHCP. Any port forwarding in the router would
be directed to static IP addresses.

If the user wanted port forwarding to work on MAC addresses then he
should have never brought up the discussion of static IP addresses. My
Linksys router won't port forward by MAC but my old D-Link could. This
meant that I didn't have to monkey around with the TCP/IP setup on any
host and that port forwarding was strictly something handled by the
router alone.

Since the OP is trying to punch through his router to have Internet
users access his video servers, he should consider whether or not he is
violating the Terms Of Service with his ISP. The OP never mentioned
having a business class contract with them. Most ISPs ban the use of
public servers by their personal account customers.

There is also the security concern of bypassing the router's inbuilt
firewall by using port forwarding. Some routers permit a separate
subnet for a DMZ in which you are expect to deploy hosts that are
hardened against Internet attack (and not just for viruses); see
http://en.wikipedia.org/wiki/DMZ_(computing). The OP never even
mentioned monitoring his router's logs to check how often it has been
hit by someone attempting to scan his network for accessible hosts.
.

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