Re: Exchange 2000 behind ISA - SMTP oubound blocked ...

It sounds like you once told ISA to route all packets through the dial-up 
interface.
Go to properties of Network Configuration and verify that it's set to use the 
"primary connection", not a dial-up interface.
How many physical interfaces do you have?

Jim Harrison
MCP(2K), A+, Network+, PCG

  ----- Original Message ----- 
  From: Paul Gee 
  To: [ISAserver.org Discussion List] 
  Sent: Tuesday, August 28, 2001 5:50 PM
  Subject: [isalist] Re: Exchange 2000 behind ISA - SMTP oubound blocked ...


  http://www.ISAserver.org


  I am on ADSL and have configured routing and remote access to get a 
persistent dialout connection. This is also using NAT.

   

  The IP log is saying that the requests to port 25 of my smart hosts have been 
blocked and the interface is stated as dialout,

   

  Does this mean that the ISA server feels that it want to dialout to transmit 
the packets successfully.?

   

  How do I rectify this ?

   

  I have taken the NAT off the RRAS and have the default GW (0.0.0.0) of the 
ISA server pointing the demand dial interface.

   

  I want to keep the demand dial RRAS setup because it works without having to 
be logged onto the computer, unlike ICS.

   

  Your thought appreciated.

   

  Regards

   

  Paul Gee

   

  -----Original Message-----
  From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] 
  Sent: 29 August 2001 01:13
  To: [ISAserver.org Discussion List]
  Subject: [isalist] Re: Exchange 2000 behind ISA - SMTP oubound blocked ...

   

  http://www.ISAserver.org

  What is showing in the FW or IP logs on the ISA?

  It sounds like the Exch server is not a secureNAT client if you have to have 
the FW client installed and enabled to connect through the ISA.

  Check this out...

  http://www.isaserver.org/shinder/tutorials/secure_nat_client.htm

  
http://www.isaserver.org/shinder/tutorials/publishing_a_mail_Server_with_isa_server.htm


  Jim Harrison
  MCP(2K), A+, Network+, PCG

    ----- Original Message ----- 

    From: Paul Gee 

    To: [ISAserver.org Discussion List] 

    Sent: Tuesday, August 28, 2001 4:42 PM

    Subject: [isalist] Exchange 2000 behind ISA - SMTP oubound blocked ...

     

    http://www.ISAserver.org

    I have an Exchange 2000 box sat behind my ISA server. It can receive mail 
ok but I cannot get it to send. (Cannot connect to external smart host)

     

    I have followed the new SMTP tutorial but am getting no joy !

     

    Basically I am trying to test by telneting to port 25 on my ISP's smart 
host. I can resolve the smart hosts name FQDN via DNS ok, but the telnet 
connection fails.

     

    I can telnet ok from behind the ISA server on a machine with the firewall 
client installed, and it works ok on the ISA server itself.

     

    I created a outbound SMTP protocol rule, and one for DNS, both apply to any 
request.

    I have disabled the SMTP service on the ISA server.

    II have published the Mail server.

     

    According to the tutorial, that should be it.

     

    It still don't work and I don't know what to do !

     

    Regards

    Paul Gee 

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