add default gateway through eth0:avah interface?

[Donatas G.]

I was trying to setup internet connection sharing by utilizing the 
automatically acquired ip's by my two cable-connected feisty boxes, but 
failed. I guess it is because the gateway gets added through eth0 interface 
and not through eht0:avah pseudo interface:

================================================
dg at pieva:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:50:8D:50:0A:37
          inet6 addr: fe80::250:8dff:fe50:a37/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:87 errors:0 dropped:0 overruns:0 frame:0
          TX packets:155 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:43209 (42.1 KiB)  TX bytes:19886 (19.4 KiB)
          Interrupt:17 Base address:0xe400
eth0:avah Link encap:Ethernet  HWaddr 00:50:8D:50:0A:37
          inet addr:169.254.3.150  Bcast:169.254.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:17 Base address:0xe400
# Added the default gateway:
dg at pieva:~$ sudo route add default gw 169.254.9.24
dg at pieva:~$ route
Kernel IP routeing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
link-local      *               255.255.0.0     U     0      0        0 eth0
default         169.254.9.24    0.0.0.0         UG    0      0        0 eth0
default         *               0.0.0.0         U     1000   0        0 eth0
================================================

So I had to resort to static IP addresses...

Is there a way to make the "route add" command specify the eth0:avah 
interface? 
-- 
Donatas Glodenis
http://dg.lapas.info