squid配置的问题

ae66

安装MDK8.2的机器，内网ip10.15.1.15 外网接一个tp－link的路由，分给外网的ip是192.168.1.60,已经配置好内、外网网卡。squid按照以下方式配置：

http_prot  3128
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
cache_effective_user nobody
cache_effective_group nobody
http_access allow all
cache_dir ufs /usr/local/squid/cache 100 16 256
把客户机的IE里设置好代理10。15。1。15：3128，但访问失败，提示为：
ERROR
The requested URL could not be retrieved

--------------------------------------------------------------------------------

While trying to retrieve the URL: http://www.chinaunix.net/

The following error was encountered:

Access Denied.
Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.

Your cache administrator is root.



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Generated Thu, 13 Jan 2005 13:38:05 GMT by www (Squid/2.4.STABLE4)
请问是什么原因：
squid是系统默认的安装。包括防火墙也是装系统时一起装上去的。squid所属用户和组均为：squid

pcstart

怎么不在http_prot 上加在局域网的IP呀.
http_prot 10.15.1.15:3128
还有看看你的iptables 开没开80端口.
在不行, 就加我QQ  11217404