Shareing my 3G T-stick modem.

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Hi Guys,

First time to Fedora so please be kind .....

I am trying to share my 3G network to the rest of my LAN and not having much luck.

My 3G interface is wwan0 set up by network manager and I get internet just fine.
I have my wired ethernet (em1) connected to a wireless router for the rest of the house ..

I have disabled em1 (wired) as a managed device in Network Manager else it just tries to use it as a primary interface and I have set it up to a fixed IP of 10.0.0.1, I have also set up and enabled dnsmasq to dish up 10.0.0.2 to .. 10.0.0.150 range.

I have then executed the following commands as root:

iptables -t nat -A POSTROUTING -o wwan0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward

And then went into the firewall config to the masquerade setting and added the wwan0 interface and enabled it ..

However, devices plugged into the router do not get an IP .... what am I missing?

Thanks,
B

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Anyone?

I have tried the network sharing options built into Network Manager, but I suspect that only works for Wireless, NM always tries to use the wired interface for internet which kills my 3G.

Hoping someone has an answer as this box is used to serve a SIP phone connection as well as being my general server ( .. read the wife is nagging me to get it going .... ;-)

Thanks

---------- Post added at 04:32 PM ---------- Previous post was at 07:49 AM ----------

Sorry I am used to Arch forums where someone answers in hours, even minutes, I am not used to not having any response ..
Can noone help me with such a basic task?

[AlexDudko]

iptables -A FORWARD -i wwan0 -d 192.168.0.0/24 -j ACCEPT
iptables -A FORWARD -s 192.168.0.0/24 -i wwan0 -j ACCEPT


iptables --table nat --append POSTROUTING --out-interface wwan0 -j MASQUERADE
iptables --append FORWARD --in-interface eth1 -j ACCEPT

Something like this will help.

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Thanks, I managed to get it going on my original iptables rule .... my router was the issue, it had a stale local addres of 192.... wheras I am now using 10.... ip range ..

Thanks anyway.