[CLUE-Tech] CLUE: DHCP with Cisco 675

[ian]

Correct.  The beauty of more advanced NIC cards and intelligent IP
stacks.  

A caveat to running multiple IPs on one card is that their is 
much more CPU usage as the NIC goes into PROMISCIOUS mode 
which means that every packet is passed up the stack for 
processing.  So if you are on a busy network you can get ALOT
of packets and that can really slow down your system.

ian



On Fri, Mar 30, 2001 at 04:51:27AM -0700, Dave Price wrote:
> I run a similar setup, but use ipchains to 'firewall' the rest of PC's
> on the LAN ... you do not really need a second ethernet card in the
> firewall box ... just give it the card a 2nd address (192.168.1.254) and
> let that be the gateway address for the other machines ... you clould
> run dhcpd on the server ... but i just hard code the tcp setup for the
> os-impaired boxes ... works fine here.
> 
> aloha,
> dave 
> 
> Richard Knechtel wrote:
> > 
> > Ok, anyone out there that is using UsWest DSl with the Cisco 675 external
> > modem have any ideas on this?
> > 
> > I have my Cisco 675 plugged into a 5 port hub, along with my main home
> > server.  I added a connection for the PC I built for the wife and kids in
> > another room. and a connection from an upstairs Ethernet hookup.  So I have
> > three PC's connected to the HUB.  What I am trying to accomplish is the
> > Cisco 675 giving out IP addresses to each machine so that they all can
> > access the internet.  I know the 675 can do NAT and can do what I want to
> > do. Bit I haven't been able to figure out how to get the 675 to give out
> > more that one IP address. It will give out the 10.0.0.1 put it won't do
> > 10.0.0.2 , .3 etc.. The manuals shos that it can do this but the
> > documentation that comes with it doesn't seem to quite tell you how to set
> > this up.  Any ideas?
> > 
> > Thanks!
> > 
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