How to know whether bypass proxy for local address is enabled in browser

Can anyone help me in finding out whether the check box "bypass proxy server for local address" in Internet explorer (Tools->Internet options->Connections->LAN Settings) is enabled from java plug in.
In my applet application if that checkbox is enabled then i have to throw a message saying that the checkbox is enabled.
Thanks in Advance
Regards
Vijay

We have been in discussions with Microsoft over the last few days on this issue - which is seen with Outlook 2007 versions onwards. Extract from resolution communication from Microsoft:
The issue you have raised is known as it has been reported and when you have a proxy set in Internet Explorer and “Bypass proxy settings for local addresses”, Outlook will attempt to connect to Office 365 directly – like the bypass rule would apply.
Because the direct connection is blocked in the Firewall, Outlook needs to have the connections going in Timeout before attempting to connect using the Proxy.
Your network trace proves the issue.
Microsoft have scheduled a fix for Outlook 2010 in February 2014 cumulative update. A fix for Outlook 2013 will also follow, but Outlook 2007 will not be addressed because it is in Extended Support.
There are two possible workarounds for this behaviour:
First, and I wouldn’t recommend it, is to allow Direct traffic through the Firewall to Office 365.
The advantage of this approach is that it will be done centralized and it will impact everyone immediately.
Information about the O365 IP addresses
There are two downsides to this behaviour:
1. First you need to maintain the Firewall exceptions as IP from O365 server can change without notice
2. Second, winhttp traffic may go through both proxy and direct and this can cause unforeseen behaviour.
The second approach is to use a proxy pac instead of manually setting in the proxy and the exceptions.
The advantage is that you will have centralized method to control how winhttp traffic goes and the issue will not be experienced anymore.
If a single pac does not be fit, you can configure proxy pac files for each site requirements and use an IIS server to store it.

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Bypass Proxy for Local Addresses

All-
With the new 2.0 software, I am now able to connect my 3G iPhone to the WiFi network at work. The network uses an authenticated proxy to get external access. I can access external sites just fine now, but I can't see internal sites. The proxy settings on my work desktop give me the option to "bypass proxy server for local addresses".
Is there any way to do this on an iPhone?
Right now I need to make a choice between access only internal sites or only external sites.
Thanks!
MF

While not wanting to be a total weenie, ME TOO
After a bit of searching, the best we're going to be able to do right now is use a Proxy Auto-Config (.pac) file. I'm drawn to this conclusion from combining a lot of web searches with a peek at the "iPhone and iPod touch Enterprise Deployment Guide, Second Edition" (available at http://manuals.info.apple.com/enUS/Enterprise_DeploymentGuide.pdf, or via the Apple iPhone Enterprise support page at http://www.apple.com/support/iphone/enterprise/.
Setting the PAC file using the iPhone v2.x software is pretty direct - click the little arrow next to the network you want to configure, scroll down to the bottom where the proxy settings live. Choose "Auto" and enter the Auto-config URL.
That's the good news. The bad news is that I'm not entirely sure what that entails w.r.t. using one with the iPhone software. I'm not entirely clever enough to create such a file nor am I clever enough to know how to stick such a file onto my iPhone. I'm going to run this around my local team to see what they can come up with. If they come up with a solution (and it's simple enough for me to do AND explain), then I'll post a follow-up. Until then, good luck to you AND if you figure something out feel free to share with everyone else.
Ron

Bypass Proxy for Local Addresses - Office 365 connection/ Outlook 2010

This is a strange one. Connectivity to Office 365 within our netwotk works fine although very slow for outlook 2010 client to initially connect. Once connected, it works ok. I have done a netwotk trace using netmon to see if i can identify
the reason for the slow startup (2 mins minumum for profile to load and for outlook to connect to exchange). The trace tell me that my local pc tries to make a direct connection to the office365 external IPs first, then tries the TMG proxy. Once it hits the
proxy, it kicks into life and works.
So it looks to me like it thinks the external IP address of office 365 is an internal address and spends it time trying all the ip addresses until it trys the proxy. At this point, the
Bypass Proxy Server for Local Addresses is ticked.
As soon as i untick this box, all traffic heads directly to the proxy and of course it connects like lighting. The exchange settings proxy is set in outlook for "on fast networks, connect using HTTP first, then connect using TCP/IP" (tick
is on) and the same for slow networks.
I cant for the life of me work out why it tries to connect directly to the external IPs first and not connect via TMG until i untick the
Bypass Proxy Server for Local Addresses
Would love any ideas that may assist.

We have been in discussions with Microsoft over the last few days on this issue - which is seen with Outlook 2007 versions onwards. Extract from resolution communication from Microsoft:
The issue you have raised is known as it has been reported and when you have a proxy set in Internet Explorer and “Bypass proxy settings for local addresses”, Outlook will attempt to connect to Office 365 directly – like the bypass rule would apply.
Because the direct connection is blocked in the Firewall, Outlook needs to have the connections going in Timeout before attempting to connect using the Proxy.
Your network trace proves the issue.
Microsoft have scheduled a fix for Outlook 2010 in February 2014 cumulative update. A fix for Outlook 2013 will also follow, but Outlook 2007 will not be addressed because it is in Extended Support.
There are two possible workarounds for this behaviour:
First, and I wouldn’t recommend it, is to allow Direct traffic through the Firewall to Office 365.
The advantage of this approach is that it will be done centralized and it will impact everyone immediately.
Information about the O365 IP addresses
There are two downsides to this behaviour:
1. First you need to maintain the Firewall exceptions as IP from O365 server can change without notice
2. Second, winhttp traffic may go through both proxy and direct and this can cause unforeseen behaviour.
The second approach is to use a proxy pac instead of manually setting in the proxy and the exceptions.
The advantage is that you will have centralized method to control how winhttp traffic goes and the issue will not be experienced anymore.
If a single pac does not be fit, you can configure proxy pac files for each site requirements and use an IIS server to store it.

How do you bypass the proxy for local addresses? It keeps prompting me for user id and password to access an intranet page

When trying to launch an intranet web site, it won't connect. It prompts me for a user id and password. I can get to external sites, and I have already added the site into the "No proxy for" dialog box

It depends where you publish your pages.
At MobileMe you can password protect a Site in iWeb. A Site is a collection of pages. If you want to protect a single page for a single person, you have to create a Site with one page and protect it.
When publishing at a 3rd party webhost, you can password protect a page or directory in a administration panel. Check with your host. iWeb is not involved there.

JRE proxy bypass for local addresses always bypasses proxy

Hi all,
I'm currently dealing with an issue with the proxy configuration in java.
Situation: I need a proxy server to connect to the internet, and I have some addresses configured in Internet Explorer that bypass the proxy.
example of the way I configured it : *.google.com;212.115.*;62.69.179.198
The address that I am trying to reach is not in the bypass list, or in any of the excluded ranges in the bypass list.
Initially I had java configured using browser settings. I thought it did not pick up the browser settings at all.
However after configuring the proxy manually in java it was still not working.
During the research I came to the conclusion that as soon as I enable the "bypass proxy server for local addresses" in Internet Explorer, or manually in java.
The JRE client automatically bypasses the proxy and is always using "proxy=direct" . As soon as I disable that feature it starts using the proxy server.
I have no idea why this is happening ?

Your message was an eye opener for me. Thanks!
You were right, that option shouldn't be enabled. During testing I got confused and was told that option needed to be enabled to enable the exception list.
But that was a stupid assumption.
I disabled the option bypass proxy for local addresses and just filled in the exception list and now it works again.

Proxy settings (local addresses)

Hello,
I was wondering if there is a way of adding addresses to be ignored by the proxy? What I'm asking is something similar to the option you find in browsers labeled "Ignore proxy for local addresses <input_box_to_add_addresses>".
The reason why I'm asking this is because I'm using a proxy server to access internet but for Mail of Exchange I need the proxy to be bypassed otherwise it won't work.
Thanks in advance

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Everything is working beautifully now, and switching between wifi and mobile automatically. I think it was just corrupted TCP/IP settings in one or both adaptors.
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After installing windows 8, it seems like the "Bypass RD gateway server for local addresses" is no longer working.
In Windows 7, when the option is checked, I could have the server name set always and the client will automatically detect whether to use the RD gateway or not. For example, from my house, if I am connecting to a computer at my work, which requires
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Another way to resolve this issue for me, beside of configuring RDP to connect directly to server also on unmanaged network, will be to turn the "wifi" subnet in a managed network, as the "wired" subnet is.
The differences between thoses to subnets, dynamically assigned by the same DHCP server, are:
The "wifi" is in a private IP range, the "wired" is in a public IP range
There's an ACL on the "wifi" subnet, not on the "wired"
The next step is to compare frames send/received when on the two networks. Something will likely tell for the network to be managed.
Beside, I'm still searching informations about NLA, which is responsible for setting a nework as managed or not.
Here are some clues:
http://blogs.technet.com/b/networking/archive/2010/09/08/network-location-awareness-nla-and-how-it-relates-to-windows-firewall-profiles.aspx
http://social.technet.microsoft.com/Forums/windows/en-US/49ea0a6b-9c03-407d-8e26-24a92849a282/network-location-awareness-signature?forum=w7itpronetworking
If anybody has official MS informations about NLA (A for Awareness and not Authentication), please share!

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We have Windows 7 with IE 11
We need this IE behavior:
"to all FQDN names that resolves to local (private) ip addresses - do not use proxy."
how can we implement this?
("Bypass Proxy Server for Local Addresses" Option don't work as needed)

Hi,
Please take a check to see if the following KB article could help here:
Internet Explorer Uses Proxy Server for Local IP Address Even if the "Bypass Proxy Server for Local Addresses" Option Is Turned On
The cause: By default, only host names are checked when the Bypass proxy server for local addresses option is turned on.
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How to know whether bypass proxy for local address is enabled in browser

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