question on use raw socket to a implement HTTP Proxy Server

Hi,

I am trying to implement a HTTP proxy server using raw socket.

I create a alias IP address on eth1:0 192.168.0.200 on my linux box

I opened a raw socket as:

fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);

and binds to 192.168.0.200 and port 3080

bind(fd, (struct sockaddr *) &addr, sizeof(addr));

However when I use netstat it shows the port as 255 as the following:

raw 0 0 192.168.0.200:255 0.0.0.0:* 7 7469/test-http-proxy

I changed the Firefox connection settings to Manual proxy configuration as:

HTTP Proxy: 192.168.0.200 Port:3080

I got this error from Firefox, and I did not receive any packets from the raw socket.

The browser is configured to use a proxy server, but the proxy refused a connection.

* Is the browser's proxy configuration correct? Check the settings and try again.
* Does the proxy service allow connections from this network?
* Still having trouble? Consult your network administrator or Internet provider for assistance.


Any ideas or pointers are appreciated.

yu_zyy