accessing page from different subnets

accessing page from different subnets

am 02.08.2007 05:20:00 von bw

hi there, i'm trying to get staff to access our intranet page but am running
into issues. firstly some details about our sites:

core site is subnet 192.168.16.x, and other subnets are 192.168.17.x and
192.168.21.x.
We have IIS running on a server with ISA2004 at the core site with ip
192.168.16.10.

When on subnet other then 16.x, then cannot access sites using FQDN but only
IP. But when have 16.x IP can use FQDN to open sites.

Does this sound like an IIS config or ISA2004? I didn't think it was an ISA
config as you can still access pages just not with FQDN.

Any suggestions would be really helpful as i'm not too familar using IIS.

Thanks.

Re: accessing page from different subnets

am 02.08.2007 08:44:39 von Kristofer Gafvert

I don't think it is an IIS issue. You say that you can access the site
with IP address, so that tells us that IIS is working. You also say that
you can access the site using FQDN as long as you are on the same subnet,
so that tells us that FQDN is working (i.e. there is no misconfiguration
of host headers).

The problem is that you cannot use the FQDN from another subnet, which to
me seems to be a DNS issue (since you can use the IP address, and the IP
address is always used to establish a connection, so by some reason the
FQDN was not properly translated into an IP address).

So i would start resolving this by examining DNS.

--
Regards,
Kristofer Gafvert
http://www.gafvert.info/iis/ - IIS Related Info


BW wrote:

>hi there, i'm trying to get staff to access our intranet page but am
>running
>into issues. firstly some details about our sites:
>
>core site is subnet 192.168.16.x, and other subnets are 192.168.17.x and
>192.168.21.x.
>We have IIS running on a server with ISA2004 at the core site with ip
>192.168.16.10.
>
>When on subnet other then 16.x, then cannot access sites using FQDN but
>only
>IP. But when have 16.x IP can use FQDN to open sites.
>
>Does this sound like an IIS config or ISA2004? I didn't think it was an
>ISA
>config as you can still access pages just not with FQDN.
>
>Any suggestions would be really helpful as i'm not too familar using IIS.
>
>Thanks.

Re: accessing page from different subnets

am 02.08.2007 14:16:01 von bw

thanks for this input. on machines on the other subnets where i cannot
access the site using fqdn, i can ping both the netbios and fqdn of the iis
server. does this say dns is working or is it different for iis?

thanks.

"Kristofer Gafvert" wrote:

> I don't think it is an IIS issue. You say that you can access the site
> with IP address, so that tells us that IIS is working. You also say that
> you can access the site using FQDN as long as you are on the same subnet,
> so that tells us that FQDN is working (i.e. there is no misconfiguration
> of host headers).
>
> The problem is that you cannot use the FQDN from another subnet, which to
> me seems to be a DNS issue (since you can use the IP address, and the IP
> address is always used to establish a connection, so by some reason the
> FQDN was not properly translated into an IP address).
>
> So i would start resolving this by examining DNS.
>
> --
> Regards,
> Kristofer Gafvert
> http://www.gafvert.info/iis/ - IIS Related Info
>
>
> BW wrote:
>
> >hi there, i'm trying to get staff to access our intranet page but am
> >running
> >into issues. firstly some details about our sites:
> >
> >core site is subnet 192.168.16.x, and other subnets are 192.168.17.x and
> >192.168.21.x.
> >We have IIS running on a server with ISA2004 at the core site with ip
> >192.168.16.10.
> >
> >When on subnet other then 16.x, then cannot access sites using FQDN but
> >only
> >IP. But when have 16.x IP can use FQDN to open sites.
> >
> >Does this sound like an IIS config or ISA2004? I didn't think it was an
> >ISA
> >config as you can still access pages just not with FQDN.
> >
> >Any suggestions would be really helpful as i'm not too familar using IIS.
> >
> >Thanks.
>

Re: accessing page from different subnets

am 02.08.2007 14:51:09 von Kristofer Gafvert

When you ping, does it resolve to the IP address of the webserver or some
other machine?

Is ISA server involved when you send a request to the webserver from
another subnet?

It sounds very strange that it should be IIS, because IIS does not make
any difference between a user coming from the same subnet, or some other
subnet. So if DNS is working (which it seems to be), perhaps it is ISA
Server after all.

--
Regards,
Kristofer Gafvert
http://www.gafvert.info/iis/ - IIS Related Info


BW wrote:

>thanks for this input. on machines on the other subnets where i cannot
>access the site using fqdn, i can ping both the netbios and fqdn of the iis
>server. does this say dns is working or is it different for iis?
>
>thanks.
>
>"Kristofer Gafvert" wrote:
>
>>I don't think it is an IIS issue. You say that you can access the site
>>with IP address, so that tells us that IIS is working. You also say that
>>you can access the site using FQDN as long as you are on the same subnet,
>>so that tells us that FQDN is working (i.e. there is no misconfiguration
>>of host headers).
>>
>>The problem is that you cannot use the FQDN from another subnet, which to
>>me seems to be a DNS issue (since you can use the IP address, and the IP
>>address is always used to establish a connection, so by some reason the
>>FQDN was not properly translated into an IP address).
>>
>>So i would start resolving this by examining DNS.
>>
>>--
>>Regards,
>>Kristofer Gafvert
>>http://www.gafvert.info/iis/ - IIS Related Info
>>
>>
>>BW wrote:
>>
>>>hi there, i'm trying to get staff to access our intranet page but am
>>>running
>>>into issues. firstly some details about our sites:
>>>
>>>core site is subnet 192.168.16.x, and other subnets are 192.168.17.x and
>>>192.168.21.x.
>>>We have IIS running on a server with ISA2004 at the core site with ip
>>>192.168.16.10.
>>>
>>>When on subnet other then 16.x, then cannot access sites using FQDN but
>>>only
>>>IP. But when have 16.x IP can use FQDN to open sites.
>>>
>>>Does this sound like an IIS config or ISA2004? I didn't think it was an
>>>ISA
>>>config as you can still access pages just not with FQDN.
>>>
>>>Any suggestions would be really helpful as i'm not too familar using IIS.
>>>
>>>Thanks.
>>

Re: accessing page from different subnets

am 03.08.2007 07:56:02 von bw

it does resolve to the iis server ip address. must be something to do with
isa - dooh.

"Kristofer Gafvert" wrote:

> When you ping, does it resolve to the IP address of the webserver or some
> other machine?
>
> Is ISA server involved when you send a request to the webserver from
> another subnet?
>
> It sounds very strange that it should be IIS, because IIS does not make
> any difference between a user coming from the same subnet, or some other
> subnet. So if DNS is working (which it seems to be), perhaps it is ISA
> Server after all.
>
> --
> Regards,
> Kristofer Gafvert
> http://www.gafvert.info/iis/ - IIS Related Info
>
>
> BW wrote:
>
> >thanks for this input. on machines on the other subnets where i cannot
> >access the site using fqdn, i can ping both the netbios and fqdn of the iis
> >server. does this say dns is working or is it different for iis?
> >
> >thanks.
> >
> >"Kristofer Gafvert" wrote:
> >
> >>I don't think it is an IIS issue. You say that you can access the site
> >>with IP address, so that tells us that IIS is working. You also say that
> >>you can access the site using FQDN as long as you are on the same subnet,
> >>so that tells us that FQDN is working (i.e. there is no misconfiguration
> >>of host headers).
> >>
> >>The problem is that you cannot use the FQDN from another subnet, which to
> >>me seems to be a DNS issue (since you can use the IP address, and the IP
> >>address is always used to establish a connection, so by some reason the
> >>FQDN was not properly translated into an IP address).
> >>
> >>So i would start resolving this by examining DNS.
> >>
> >>--
> >>Regards,
> >>Kristofer Gafvert
> >>http://www.gafvert.info/iis/ - IIS Related Info
> >>
> >>
> >>BW wrote:
> >>
> >>>hi there, i'm trying to get staff to access our intranet page but am
> >>>running
> >>>into issues. firstly some details about our sites:
> >>>
> >>>core site is subnet 192.168.16.x, and other subnets are 192.168.17.x and
> >>>192.168.21.x.
> >>>We have IIS running on a server with ISA2004 at the core site with ip
> >>>192.168.16.10.
> >>>
> >>>When on subnet other then 16.x, then cannot access sites using FQDN but
> >>>only
> >>>IP. But when have 16.x IP can use FQDN to open sites.
> >>>
> >>>Does this sound like an IIS config or ISA2004? I didn't think it was an
> >>>ISA
> >>>config as you can still access pages just not with FQDN.
> >>>
> >>>Any suggestions would be really helpful as i'm not too familar using IIS.
> >>>
> >>>Thanks.
> >>
>