[RndTbl] IP Masquerading for USB ethernet
Brian Doob
bdoob at acm.org
Sun Dec 21 11:05:36 CST 2003
I have a Compaq iPaq with Linux installed on it (see
http://opie.handhelds.org/), and it is connected to my Gentoo Linux box
with USB ethernet. The Gentoo box is connected to an Ovislink router
(with a DHCP server) via regular ethernet. I want the hanheld to be
able to talk to the net via the Gentoo box. I have not been able to get
IP masquerading to work under Gentoo. I would prefer to have the
handheld get its IP address from the router (and have the Gentoo box
just forward the packets). Does anyone know how to get this working?
Here is some info about my situation:
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:20:ED:B8:91:55
inet addr:192.168.1.1 Bcast:255.255.255.255
Mask:255.255.255.0
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3340 errors:0 dropped:0 overruns:0 frame:0
TX packets:3557 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3330687 (3.1 Mb) TX bytes:448922 (438.4 Kb)
Interrupt:11
# ifconfig usb0
usb0 Link encap:Ethernet HWaddr 4E:DC:69:01:CA:EF
inet addr:192.168.1.200 Bcast:192.168.1.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25 errors:0 dropped:0 overruns:0 frame:0
TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:980 (980.0 b) TX bytes:574 (574.0 b)
# iptables -t nat -I POSTROUTING -j MASQUERAQDE -s 192.168.1.3/16
iptables v1.2.8: Couldn't load target
`MASQUERAQDE':/lib/iptables/libipt_MASQUERAQDE.so: cannot open shared
object file: No such file or directory
# uname -a
Linux proton 2.4.23-ck1 #1 Thu Dec 4 19:21:52 CST 2003 i686 AMD
Athlon(tm) XP 1800+ AuthenticAMD GNU/Linux
This is how I bring up the network to the PDA:
modprobe uhci
sleep 1
insmod usbnet
ifconfig usb0 192.168.1.200 netmask 255.255.255.0 pointopoint
192.168.1.3 up
route add -host 192.168.1.3 usb0
If anyone is interested in the really gritty details, I have attached
the config file for my kernel.
Does anyone know what I need to do? Thanks.
-Brian
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