On Mon, Mar 2, 2009 at 8:22 PM, Sahid Khan (সাহিদ) <[email protected]> wrote:
> 2009/3/2 Kapil Hari Paranjape <[email protected]>:
>> This output shows that it is "ppp0" which is your WAN port. This
>> seems likely since PPP-over-Ethernet is the way in which most BSNL
>> DataOne links work.
>>
>> This means that your outgoing port is ppp0 *not* eth0.
>
> That is right. But do I need to mention anything for this in my LAN
> machine? Currently I have set the gateway of LAN machine(s) as the LAN
> ip of my gateway machine.

Actually this solved the problem. I just replaced all eth0 with ppp0
in my previous commands. And it started working. I had to make the LAN
interface as trusted device in the gateway machine though. For some
strange reason "Trusted devices" option has been disappeared from
"System -> Administration -> Security Level and Firewall" in CentOS 5.
Fortunately this particular option was available in the text mode
equivalent (system-config-securitylevel-tui). I can now connect to
Internet from my laptop with other regular firewalls being enabled.
Thank you very much for your help.

-- 
S.
Argue with idiots, and you become an idiot. - PG
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