On Wed, 10 Jul 2002, George Georgalis wrote:

> Bering rc2
> 
> This is the general procedure I use to bring up networking...  I
> understand there is a way to bring up an interface to listen to an
> entire subnet, not just an address.

Are you thinking of proxy-arp?

http://www.shorewall.net/Documentation.htm#ProxyArp

> Can someone help me with the ip syntax?

Why are you re-inventing the network scripts?

It hardly looks like Bering when you do this.  See below...

> 
> Thanks,
> // George
> 
> 
> 
> down () {
> d=`ip -o link show | cut -d: -f2`
> for i in $d ; do
>         ip addr flush $i
>         ip link set $i down
> done
> }
> 
> up () {
> ip link set lo up
> ip link set eth0 up
> ip link set eth1 up
> ip addr add 127.0.0.1/8 label lo dev lo
> ip addr add 192.168.2.66/24    label eth0   dev eth0
> ip addr add 10.1.1.1/8         label eth1   dev eth1
> ip route add 127/8 via 127.0.0.1       table main
> }
> 
> case "$1" in
>   start)
>         down
>         up
>     ;;
> 
>   stop)
>         down
>     ;;
> 
>   restart)
>         down
>         up
>     ;;
> 
>   *)
>     echo "Usage: /etc/init.d/network.sh {start|stop|restart}"
>     exit 1
> esac
> exit 0

How about:

---/etc/network/interfaces---
# Loopback interface.
auto lo
iface lo inet loopback

#...

# Option 1.2: eth0 / Fixed IP (assumed to be 1.2.3.4). 
#               (broadcast/gateway optional)
auto eth0
iface eth0 inet static  
        address 192.168.2.66
        masklen 24
        broadcast 192.168.2.255
#        gateway 192.168.2.1

# ...

# Step 2: configure  internal interface
# Default: eth1 / fixed IP = 192.168.1.254
auto eth1
iface eth1 inet static
        address 10.1.1.1
        masklen 8
        broadcast 10.255.255.255
-----------------------------

and use Shorewall, removing the "norfc1918" option.

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