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Asp.Net Permission Issue with Sockets Messages   Related Types This message was discovered on ASPFriends.com 'ngfx-io' list. Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions. Kloberg Mac (LAM) (VIP) I'm trying to ping a router in ASP.NET and use System.Net.Sockets to do this, however I get the following error: Exception Details: System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions Source Error: Line 18: Dim socket As Socket = New Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp) Stack Trace: [SocketException (0x271d): An attempt was made to access a socket in a way forbidden by its access permissions] System.Net.Sockets.Socket..ctor(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType) +142 I suspect that this has something to do with the ASP.NET account, which permission or policy do I need to give it to make this work? TIA -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com Reply to this message...        Mitch Denny (VIP) Mac, Under IIS 5.0, ASP.NET applications execute with the Full Trust permission set and is only constrained by the rights of the ASPNET account. I can't imagine what is stopping you unless it is something in the OS user rights which is blocking you. Have you attempted to execute the code within an console application running with administrator privs? ---------------------------------------- - Mitch Denny - Click here to reveal e-mail address - +61 (414) 610-141 - -----Original Message----- From: Kloberg Mac (LAM) [mailto:Click here to reveal e-mail address] Sent: Tuesday, 25 June 2002 23:41 To: ngfx-io Subject: [ngfx-io] Asp.Net Permission Issue with Sockets I'm trying to ping a router in ASP.NET and use System.Net.Sockets to do this, however I get the following error: Exception Details: System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions Source Error: Line 18: Dim socket As Socket = New Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp) Stack Trace: [SocketException (0x271d): An attempt was made to access a socket in a way forbidden by its access permissions] System.Net.Sockets.Socket..ctor(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType) +142 I suspect that this has something to do with the ASP.NET account, which permission or policy do I need to give it to make this work? TIA -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com | [ngfx-io] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT Reply to this message...        Kloberg Mac (LAM) (VIP) When I run the same thing from a WinForm with my local user account (member of Administrators), it works fine. I already checked the permission sets in the Framework Configuration, but everywhere I look it says "Grant assemblies unrestricted access to sockets". I even tried to give the Asp.Net account the "Act as part of the Operating System" privilege. Nothing seems to work, I keep getting the same error: "System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions". Any other Ideas? -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com [Original message clipped] Reply to this message...        Jose Fuentes I have one idea. on the server in administrative tools you have a item there called ".net framework configuration" In there you have runtime security policys you may have to adjust an app's permisions or the zone security. Hope that helps. Joe -----Original Message----- From: Kloberg Mac (LAM) [mailto:Click here to reveal e-mail address] Sent: Wednesday, June 26, 2002 8:44 AM To: ngfx-io Subject: [ngfx-io] RE: Asp.Net Permission Issue with Sockets When I run the same thing from a WinForm with my local user account (member of Administrators), it works fine. I already checked the permission sets in the Framework Configuration, but everywhere I look it says "Grant assemblies unrestricted access to sockets". I even tried to give the Asp.Net account the "Act as part of the Operating System" privilege. Nothing seems to work, I keep getting the same error: "System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions". Any other Ideas? -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com [Original message clipped] | [ngfx-io] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT Reply to this message...        Kloberg Mac (LAM) (VIP) Yep, I went there already and all settings where "Grant assemblies unrestricted access to sockets". Still the same error though... Also, if the problem was there, it wouldn't work at all. I can run the same code in a winforms application without a problem. It only throws the error in an ASP.Net application. -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com [Original message clipped] Reply to this message...        Mitch Denny (VIP) Mac, I did a bit of investigation and I am afraid that you are not going to like the news. It looks like the limitation is behavior by design and that only user accounts that are members of the Administrators group have rights to access the raw sockets implementation.     http://support.microsoft.com/default.aspx?scid=kb;EN-US;q170591 If you quickly add the ASPNET account to the administrators group then re-start IIS you will notice everything starts working very nicely. They do specify a rather drastic work around in this knowledge base article, but I'm not going to do it for obvious security reasons.     http://support.microsoft.com/default.aspx?scid=kb;en-us;Q195445 They also talk about a work around in a DLL called icmp.dll so you could possibly export the functions in there. ---------------------------------------- - Mitch Denny - Click here to reveal e-mail address - +61 (414) 610-141 - -----Original Message----- From: Kloberg Mac (LAM) [mailto:Click here to reveal e-mail address] Sent: Wednesday, 26 June 2002 22:44 To: ngfx-io Subject: [ngfx-io] RE: Asp.Net Permission Issue with Sockets When I run the same thing from a WinForm with my local user account (member of Administrators), it works fine. I already checked the permission sets in the Framework Configuration, but everywhere I look it says "Grant assemblies unrestricted access to sockets". I even tried to give the Asp.Net account the "Act as part of the Operating System" privilege. Nothing seems to work, I keep getting the same error: "System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions". Any other Ideas? -- Sincerely, Mac Kloberg LIEBHERR AMERICA INC. http://www.liebherr.com [Original message clipped] | [ngfx-io] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT Reply to this message...     System.Net.Sockets.AddressFamily System.Net.Sockets.ProtocolType System.Net.Sockets.Socket System.Net.Sockets.SocketException System.Net.Sockets.SocketType Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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