RE: Direct Access Issues w/SurfControl
- From: "Ball, Dan" <DBall@xxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 12 Dec 2005 22:54:32 -0500
I queried the server to see what was actually being sent to the
workstations, and they "appear" to be correct.
When I query http://10.20.1.1/wpad.dat (local subnet), I get a
configuration script matching the settings on the Network in the ISA
server. When I query http://10.20.1.1/wspad.dat I get the firewall
version of this file, with the appropriate settings for that Network
also. When I query http://10.20.1.1:8080/array.dll?Get.Routing.Script,
I get a duplicate of the wpad.dat file, all seems good.
When I query the same files using the 10.6.254.90 address instead
(Remote subnet), I get basically the same files, but the settings in
them match the settings for the remote subnet, which they should, so I'm
at a loss for what is causing the troubles. I made some changes in the
network properties, and when I re-queried the scripts, the changes
showed up on the appropriate network.
Since I was having problems with the DNS wpad designation, I set
everything up to use IPs instead. The only place I see referencing a
hostname is the wpad.dat/getarray file, where it says:
DirectNames=new MakeNames();
cDirectNames=3;
HttpPort="8080";
cNodes=1;
function MakeProxies(){
this[0]=new Node("gateway.MAPSNET.ORG",0,1.000000);
}
I'm not sure what this function does, but I'm wondering if it resolves
this hostname to the wrong subnet if that might be the cause.
-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
Sent: Monday, December 12, 2005 9:58 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Direct Access Issues w/SurfControl
http://www.ISAserver.org
Hi Dan,
Indeed. The autoconfig script is going to be the pain point for all but
one network, because there is only one autoconfig script maintained by
the ISA firewall, so if they try to connect to the Web proxy listener
that isn't local to their ISA firewall Network, then the connection
attempt will fail. I tried publishing the Web listener on the non-local
Network to the local Network, but no workie. I might try it again just
for fun, though.
Tom
Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**
> -----Original Message-----
> From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
> Sent: Monday, December 12, 2005 2:26 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Stefaan, I went through your article quite thoroughly, and it
> clarified
> many things for me, thanks. I decided to put these settings in place
> here, and have had mixed results.
>
> The difficulties seem to arise because I have multiple
> internal networks
> on my ISA server. I enabled the "Use automatic configuration script"
> option on both of these internal networks, but only one seems to be
> working good.
>
> On one of the subnets, when I have that option enabled, I watched the
> logs and saw that instead of using the web proxy, it is
> trying to access
> the external site directly using Port 80. When I disable that option,
> it goes through the web proxy like it should. However, I
> tried another
> computer on that same subnet, and everything worked perfect,
> so it just
> doesn't make sense.
>
> I've retrieved all the wspad.dat and wspad.dat files from
> both internet
> networks, and they appear to be correct. Any ideas?
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: Monday, December 05, 2005 4:42 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Jim,
>
> Didn't you got my mail with the SRZ0505266000674 case history? I just
> resend
> the mail, just in case. ;-)
>
> After the usual first level blablabla the case was handled by Tommy
> Walker
> (second level) together with GTSC Matthew Rose and Christophe
> Despoges.
>
> Thereafter, Kristin Thomas (third level) was the owner:
>
> Kristin Thomas, MCSE, MCP
> Global Technical Support Center
> Platforms - Networking
> Microsoft Limited
> Tel: +44 118 909 4399
> Email: kthomas@xxxxxxxxxxxxx
>
> Then the case was transfered to Pierre Louis Coll, an Escalation
> Engineer in
> the Internet Explorer support team.
> Tel: +33 1 69 86 66 90
> Email: pierrelc@xxxxxxxxxxxxx
>
> That's all I have as contact information...
>
> Thanks,
> Stefaan
>
> -----Original Message-----
> From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> Sent: maandag 5 december 2005 22:06
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Are you sure that's not typo'd?
> Do you know what location took the case (US/CA, AP, Euro)?
>
>
> -------------------------------------------------------
> Jim Harrison
> MCP(NT4, W2K), A+, Network+, PCG
> http://isaserver.org/Jim_Harrison/
> http://isatools.org
> Read the help / books / articles!
> -------------------------------------------------------
>
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: Monday, December 05, 2005 11:57
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Jim,
>
> I'm listening ....
>
> Stefaan
>
> -----Original Message-----
> From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> Sent: vrijdag 2 december 2005 20:59
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> I'll tell Stefaan, but no one else because I'm in a mood; so there,
> thpthpthp.
>
>
> -------------------------------------------------------
> Jim Harrison
> MCP(NT4, W2K), A+, Network+, PCG
> http://isaserver.org/Jim_Harrison/
> http://isatools.org
> Read the help / books / articles!
> -------------------------------------------------------
>
>
> -----Original Message-----
> From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
> Sent: Friday, December 02, 2005 11:54
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Please keep me informed of what you find out, that is a big problem
> here.
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: Friday, December 02, 2005 1:22 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Jim,
>
> Can you confirm what they (Microsoft PSS) have told me?
>
> Thanks,
> Stefaan
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: donderdag 1 december 2005 21:23
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Jim,
>
> I've mailed you the SRZ0505266000674 case history concerning the DHCP
> issue
> with IE.
>
> Regards,
> Stefaan
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: donderdag 1 december 2005 21:16
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Jim,
>
> Will answer you offline...
>
> Stefaan
>
> -----Original Message-----
> From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> Sent: donderdag 1 december 2005 21:01
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Worse yet - that KB isn't listed internally either.
> Where did you get that #?
>
>
> -------------------------------------------------------
> Jim Harrison
> MCP(NT4, W2K), A+, Network+, PCG
> http://isaserver.org/Jim_Harrison/
> http://isatools.org
> Read the help / books / articles!
> -------------------------------------------------------
>
>
> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: Thursday, December 01, 2005 11:02
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Tom,
>
> unfortunately the KB906055 fix is not yet published. I've tested the
> official release of the patch and it solves the problem for Windows XP
> SP2.
> Microsoft assured me that if you call PSS they will give you the fix.
>
> Also, the WinInet fix Jim was talking about has not yet been released.
> I've
> tested an interim version of the KB907455 fix but it didn't solve the
> problem completely yet. However, this fix should be valid for
> Windows XP
> SP1
> and SP2.
>
> HTH,
> Stefaan
>
> -----Original Message-----
> From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
> Sent: donderdag 1 december 2005 16:52
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Direct Access Issues w/SurfControl
>
> http://www.ISAserver.org
>
> Hi Stefaan,
>
> Thank you very much for pointing out that information! I am really
> remiss
> for not remembering this fact that you mentioned in your article :(
>
> Tom
>
> Thomas W Shinder, M.D.
> Site: www.isaserver.org
> Blog: http://spaces.msn.com/members/drisa/
> Book: http://tinyurl.com/3xqb7
> MVP -- ISA Firewalls
> **Who is John Galt?**
>
>
>
> > -----Original Message-----
> > From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> > Sent: Thursday, December 01, 2005 9:08 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: Direct Access Issues w/SurfControl
> >
> > http://www.ISAserver.org
> >
> > Hi Jim,
> >
> > That's what described in my article
> > http://www.isaserver.org/articles/ISA2004_ClientAutoConfig.htm
> > l and related
> > topic http://forums.isaserver.org/m_350016600/mpage_1/tm.htm.
> >
> > A fix for Windows XP SP2 is officialy released on November
> 11, 2005.
> > The related knowledge base article is KB906055 and should
> be available
>
> > soon on the web. IE uses an obsolete DHCP API but this API has been
> > fixed (DHCPCSVC) for Windows XP SP2 only.
> >
> > HTH,
> > Stefaan
> >
> > -----Original Message-----
> > From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> > Sent: donderdag 1 december 2005 15:54
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: Direct Access Issues w/SurfControl
> >
> > http://www.ISAserver.org
> >
> > Don't use DHCP wpad - it's crap.
> > We've found that WinInet (what IE uses) can take up to 10
> seconds to
> > "digest" the DHCP data it gets.
> >
> > Use only DNS or WINS (if you must).
> >
> > -----Original Message-----
> > From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
> > Sent: Thursday, December 01, 2005 6:20 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: Direct Access Issues w/SurfControl
> >
> > http://www.ISAserver.org
> >
> > I had to take those setting off again this morning, so I'm not sure
> > what the heck is going on...
> >
> > When opening up IE, it would take 2-3 minutes for the
> "Detecting Proxy
> > > Settings" in the status bar to go away, and then things would run
> sluggish.
> > By un-checking the "Automatically detect settings" and "Use
> automatic
> > configuration script" in IE things sped up dramatically, so I took
> > them back off the ISA server.
> >
> >
> > -----Original Message-----
> > From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
> > Sent: Wednesday, November 30, 2005 11:06 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: Direct Access Issues w/SurfControl
> >
> > http://www.ISAserver.org
> >
> > I've been through those articles many-many times trying to
> work this
> > out, and just went through them again. My eyes must be
> getting old,
> > although I read the last paragraph on the last page many times, I
> > still missed it until this last re-reading...
> >
> > Your clue in the e-mail helped though, I had the
> "Automatically detect
>
> > settings" and "Use automatic configuration script" turned
> off on the
> > "Firewall Client" tab from when we had the SurfControl proxy bypass
> > problem several months ago. With the solution you thought up, that
> > might not be an issue anymore. In any case, I'll leave
> them enabled
> > and see if people start having troubles.
> >
> > I don't see where it updated the setting in IE on the client, but I
> > also don't see it passing through the ISA server anymore,
> so it must
> > be using a different method.
> >
> > Thanks!
> >
> > -----Original Message-----
> > From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
> > Sent: Wednesday, November 30, 2005 9:59 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: Direct Access Issues w/SurfControl
> >
> > http://www.ISAserver.org
> >
> > Hi Dan,
> >
> > Check the articles again. It'll show you how to configure
> the Direct
> > Access list on the ISA firewall and how to configure the clients to
> > use the autoconfig script so that they can use the Direct
> Access list.
> >
> > Also, make sure the Direct Access clients are configured with a DNS
> > server that allows them to resolve the name of the site to
> the site's
> > Internal address.
> >
> > HTH,
> > Tom
> >
> > Thomas W Shinder, M.D.
> > Site: www.isaserver.org
> > Blog: http://spaces.msn.com/members/drisa/
> > Book: http://tinyurl.com/3xqb7
> > MVP -- ISA Firewalls
> > **Who is John Galt?**
> >
> >
> >
> > > -----Original Message-----
> > > From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
> > > Sent: Wednesday, November 30, 2005 8:54 AM
> > > To: [ISAserver.org Discussion List]
> > > Subject: [isalist] Direct Access Issues w/SurfControl
> > >
> > > http://www.ISAserver.org
> > >
> > > This Direct Access issue is rearing its ugly head again here.
> > >
> > > I'm running ISA2004, with the newest version of
> SurfControl. Or at
> > > least I "think" it's the newest version, as I cannot locate
> > any newer
> > > hotfixes for it...
> > >
> > > I've tried and tried to not loop the local webserver
> > through the ISA
> > > server, but have been unable to figure out a way to do it. Tom
> > > mentioned a couple of weeks ago that SurfControl
> basically disables
> > > the Direct Access abilities of the ISA server, so that
> > explains that
> > > part.
> > >
> > > Normally, I wouldn't mind the traffic passing through the
> > ISA server,
> > > as it has a 1Gbps network connect. But, the problem I'm
> > running into
> > > is that whenever we get a really heavy web traffic period,
> > accessing
> > > our local webserver is pathetically slow, i.e. it'll take over a
> > > minute to display the first page. It probably has to do
> with 800+
> > > people all clicking like mad at the same time...
> > >
> > > When I disable the Proxy settings in IE, I can browse our local
> > > webserver at full-speed, but cannot access the Internet.
> > If I go into
> > > the IE->Tools->Internet Options->LAN Settings->Advanced
> > menu and add
> > > "*.mapsnet.org" as addresses to bypass proxy, this also works.
> > >
> > > However, all the proxy settings are coming from the ISA
> > server, so any
> > > entries into that area are overwritten whenever the FWC
> > refreshes its
> > > info. I cannot push these settings out via GPO either,
> because the
> > > FWC would override them.
> > >
> > > Is there a way to get these settings pushed out from the
> ISA server?
Other related posts:
