We help IT Professionals succeed at work.
Get Started

What ports should be open on a Cisco 871 for Exchange and Remote Desktop

ncallas2000 asked
Last Modified: 2010-08-05
Hello all,
I have an 871 Cisco router and I'm using SDM to configure the unit. My question is what ports should only be open to just have exchange work (safely). As you know there are a number of Protocol/Services (TCP, UDP, ICMP, and IP) to configure for the returning traffic IP's. So what ports should be opened under TCP, UDP, ICMP, and IP. I have the server internal IP in the NAT mapped to an outside IP. Is there a Cisco guide out there that can get me started?

Warmest Regards, Nick
Watch Question
Top Expert 2014
This problem has been solved!
Unlock 1 Answer and 8 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE