SQUID Problem.....

hello friends !

i am having problem in squid , when i browse from any client it gives me connection failed error msge on browser.

i have checked log files access.log , it shows following lines

1174491459.890 241295 10.0.0.9 TCP_MISS/504 1362 GET www.yahoo.com/ - DIR
ECT/69.147.114.210 text/html
1174491701.490 241430 10.0.0.9 TCP_MISS/504 1384 GET www.yahoo.com/favico
n.ico - DIRECT/69.147.114.210 text/html
1174492833.566 239900 10.0.0.9 TCP_MISS/504 1362 GET www.yahoo.com/ - DIR
ECT/69.147.114.210 text/html


i have also check cache.log and found following enteries.

2007/03/21 16:10:49| Reconfiguring Squid Cache (version 2.5.STABLE13)...
2007/03/21 16:10:49| FD 9 Closing HTTP connection
2007/03/21 16:10:49| FD 11 Closing ICP connection
2007/03/21 16:10:49| User-Agent logging is disabled.
2007/03/21 16:10:49| Referer logging is disabled.
2007/03/21 16:10:49| DNS Socket created at 0.0.0.0, port 32773, FD 8
2007/03/21 16:10:49| Adding nameserver 212.85.15.40 from /etc/resolv.conf
2007/03/21 16:10:49| Adding nameserver 212.85.15.10 from /etc/resolv.conf
2007/03/21 16:10:49| Adding nameserver 10.0.0.1 from /etc/resolv.conf
2007/03/21 16:10:49| Accepting HTTP connections at 10.0.0.9, port 8080, FD 9.
2007/03/21 16:10:49| Accepting ICP messages at 0.0.0.0, port 3130, FD 11.
2007/03/21 16:10:49| WCCP Disabled.
2007/03/21 16:10:49| Loaded Icons.
2007/03/21 16:10:49| eventCleanup
2007/03/21 16:10:49| Ready to serve requests.


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squid is listening http request on 8080 .... internal network address on squid is 10.0.0.9 and external address is 212.85.21.101
...

any one who can help ?