RE: iptables and device aliases

["Dave Warchol" <Warchol@harthosp.org>]

I will still need to define the device alias, correct?
Thanks
Dave

>>> "Jason Opperisano" <Jopperisano@alphanumeric.com> 08/18/04 09:25AM
>>>
> Hello:
>          I am new to the list.  I am currently using iptables to
> redirect traffic on eth0 for ports 80 and 443,  to ports 8080 and
8443,
> respectively.  I have request to set up another DNS name for this
server
> and to redirect entries coming to port 443 for this new DNS name to
port
> 8444.  I think that one way of doing this would be to define a
device
> alias, say eth0:1, assign it a new IP address and associate the new
DNS
> name with that new IP.  I could then use iptables to redirect traffic
on
> eth0:1, port 443 to port 8444.  I was just wondering if iptables
> recognizes/supports device aliases or if there is a better way of
> accomplishing the same thing.

iptables does not recognise the "eth0:1" syntax.  use ip aliases:

	ip address add x.x.x.x dev eth0

and then filter on "-i eth0" and ip address "x.x.x.x"

-j