By pass Proxy when invoking a web service
<configuration>
<system.net>
<defaultProxy useDefaultCredentials=“true“ enabled = “False”> Set enabled as False to bypass proxy
<proxy usesystemdefault= “False“ proxyaddress=“http://a.com“ bypassonlocal=“True“ />
</defaultProxy>
</system.net>
</configuration>
To specify proxy credentials in your code
NetworkCredential credential = new NetworkCredential(“user”, “password”,“domain”);
Service1 _service = new Service1();
_service.PreAuthenticate = true;
_service.Credentials = credential;
_service.Proxy = WebProxy.GetDefaultProxy();
_service.Proxy.Credentials = CredentialCache.DefaultCredentials;
