Faking multiple physical adapters for DHCPDISCOVER
root at mediamonks.net
Wed Apr 12 17:09:00 UTC 2006
> -----Original Message-----
> From: Chuck Swiger [mailto:cswiger at mac.com]
> Sent: Tuesday, April 11, 2006 6:17 PM
> Subject: Re: Faking multiple physical adapters for DHCPDISCOVER
> Terrence Koeman wrote:
> [ ... ]
> > I need to 'clone' the xl1 adapter to appear as three adapters, each
> > with a distinct MAC address. This because my provider has assigned me
> > three semi-static addresses of which I want to use 1 for outbound
> > NAT-traffic and two for static NAT.
> > These addresses are semi-static because they are basically MAC-based
> > reservations on the providers DHCP server, and it happens to be that
> > I'm required to aquire a DHCP lease for all three addresses for
> > routing to work properly. If I configure the addresses statically the
> > connectivity 'disappears' after a while.
> The reason why your ISP has configured their system in such a fashion is to
prevent people from claiming multiple static IPs from a single machine.
> If you're not happy with their AUP, use another provider, or pay for a
dedicated IP allocation of whatever size you need.
That's not the case here, I'm actually trying to use less IP's. And besides
that my ISP allows up to 16 IP's to be used in their AUP.
I have about 5 clients that can share 1 IP with NAT and I have 2 other
clients that need to have an IP of their own.
If I can have all IP's bound to the server then I can simply NAT the 5
clients and static-NAT the remaining 2. Otherwise I'd need to bridge/route
and do NAT at the same time, which is not possible here, because then the 5
NAT-ed clients would need to get their IP's from the local DHCP server and
the 2 bridged clients would need to get them from the ISP DHCP server. I
could block DHCP from being bridged and do DHCP proxying for the other 2
clients, but it'd make it all much more complicated.
MediaMonks B.V. (www.mediamonks.com)
Please quote all replies in correspondence.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 4698 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20060412/a0935b6e/smime.bin
More information about the freebsd-questions