+ Post New Thread
Results 1 to 4 of 4
Internet Related/Filtering/Firewall Thread, ISA 2006 in Technical; Hi Everyone I have an ISA setup as our gateway to the internet and i am trying to use the ...
  1. #1
    mattstevenson2005's Avatar
    Join Date
    Jan 2008
    Location
    Manchester
    Posts
    97
    Thank Post
    3
    Thanked 7 Times in 5 Posts
    Rep Power
    15

    ISA 2006

    Hi Everyone

    I have an ISA setup as our gateway to the internet and i am trying to use the web publishing feature but i am having a few problems with it. When i try and access an internal web server from the actual ISA server it cannot find the page, therefore the web publishing for that site doesnt work. Does anybody have any idea why the ISA cannot access the internal web pages. Both the ISA and the web server can see and access each other e.g. through file shares/ping etc.. but just cant access the actual web page.

    The ISA has two network cards in, one internal and one external

    Internal

    172.16.0.10 IP Address
    255.255.0.0 Subnet
    NO Default Gateway
    172.16.0.1 Primary DNS
    172.16.0.3 Secondary DNS

    External - DETAILS SUPPLIED BY LEA
    10.15.80.14 IP Address
    255.255.0.0 Subnet
    10.15.3.254 Default Gateway
    10.15.250.160 Primary DNS
    10.15.250.161 Secondary DNS

    Every thing else seams to work internet access is fine, its just accessing the internal web servers and web publishing that im having problems with

    Cheers

    Matt

  2. #2

    Join Date
    Oct 2005
    Location
    East Midlands
    Posts
    737
    Thank Post
    17
    Thanked 105 Times in 65 Posts
    Rep Power
    36
    Quote Originally Posted by mattstevenson2005 View Post
    Hi Everyone

    I have an ISA setup as our gateway to the internet and i am trying to use the web publishing feature but i am having a few problems with it. When i try and access an internal web server from the actual ISA server it cannot find the page, therefore the web publishing for that site doesnt work. Does anybody have any idea why the ISA cannot access the internal web pages. Both the ISA and the web server can see and access each other e.g. through file shares/ping etc.. but just cant access the actual web page.

    The ISA has two network cards in, one internal and one external

    Internal

    172.16.0.10 IP Address
    255.255.0.0 Subnet
    NO Default Gateway
    172.16.0.1 Primary DNS
    172.16.0.3 Secondary DNS

    External - DETAILS SUPPLIED BY LEA
    10.15.80.14 IP Address
    255.255.0.0 Subnet
    10.15.3.254 Default Gateway
    10.15.250.160 Primary DNS
    10.15.250.161 Secondary DNS

    Every thing else seams to work internet access is fine, its just accessing the internal web servers and web publishing that im having problems with

    Cheers

    Matt
    Hi,

    You should not use DNS servers on the external NIC but instead configure forwarders to point to your ISP's DNS servers on your internal DCs to answer or relay the DNS queries.

    You will need an access to to allow DNS protocol from your internal DC (the one with the forwarders set) to external or your ISP's DNS server.

    Believe me it will solve a lot of other problems that you have not encountered yet.

    Ash.

  3. #3
    mattstevenson2005's Avatar
    Join Date
    Jan 2008
    Location
    Manchester
    Posts
    97
    Thank Post
    3
    Thanked 7 Times in 5 Posts
    Rep Power
    15
    Hi Ash

    Thanks for the answer, im not quite sure what you mean. Because of the way our internet is supplied by the local council our internal DCs cannot 'see' any 10.15 address. We use the ISA to NAT all traffic from the 10.15 network to our internal network. I already have a forwarder setup to point to an external DNS server on our main DC which is also our primary DNS server

    Cheers

    Matt

  4. #4
    mattstevenson2005's Avatar
    Join Date
    Jan 2008
    Location
    Manchester
    Posts
    97
    Thank Post
    3
    Thanked 7 Times in 5 Posts
    Rep Power
    15
    Thanks, i have worked it out. It was because the default web chaining rule was forwarding all requested up to the upstream LEA proxy and not resolving local addresses internally LOL my fault

    Cheers

    Matt

SHARE:
+ Post New Thread

Similar Threads

  1. ISA 2006
    By AdamR78 in forum Internet Related/Filtering/Firewall
    Replies: 1
    Last Post: 23rd February 2009, 09:53 AM
  2. ISA 2006 Help
    By skunk in forum Windows
    Replies: 3
    Last Post: 18th October 2007, 11:36 AM
  3. ISA 2006
    By UBBERgoose in forum Windows
    Replies: 3
    Last Post: 23rd August 2007, 09:26 AM
  4. isa server 2006
    By DaveJ2717uk in forum Windows
    Replies: 6
    Last Post: 10th May 2007, 01:50 PM
  5. ISA Server 2006
    By Norphy in forum Windows
    Replies: 13
    Last Post: 9th March 2006, 02:37 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •