Hello
Can any one look up to my problem. The problem is:
I have set up a small lan with both wired and wireless
clients, here i am describing only wired lan.
I am giving you the details, which will help you to
understand my problem.
A----------B----------C
|
|
|
D
Here A is my windows client with IP address
192.168.101.1 Mask 255.255.0.0
Here B is my Linux7.3 Server with IP address
192.168.0.1 Mask 255.255.0.0
B is also connected to Internet with Generic
Serial Modem (ppp0).
Here C is my windows client with IP address
192.168.101.3 Mask 255.255.0.0
Here D is my Linux client with IP address
192.168.80.1 Mask 255.255.0.0.
I am sharing internet to all my client i.e A, C and D.
using this command.
>iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
# Turn on the IP forwarding
>echo 1 > /proc/sys/net/ipv4/ip_forward
Upto this everything works fine all clients (A, C, D)
share internets.
Now if i wanted to start any chat services i.e Yahoo
Messenger or vat tool the person who has logged on
from A not able to talk to person logged on from C or
D. or even a person who is also online from out of
this network (Somewhere from internet)also not able
to call or do voice chat.
# I had use this command after that
>iptables -t nat -A PREROUTING -i ppp0 -j DNAT
--to-destination 192.168.101.3
This time i am able to call people from outside from
machine C (192.168.101.3)and also able to do voice
conversation in vat. But another side A and D are not
able to talk to that person outside the network. Also
the above command will not work for other hosts A and
D. At a time only one machine is able to make a vat
connection from B.
1) What should i do so A, C, and D all together can
use to call outside and able to do voice
conversation
in vat or vive-versa?
2) what should i do so A can talk to B in yahoo or vat
voice chat?
please let me know that is there any solution for my
problem? Mostly i wanted to run vat?
Thanks
Manish.
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