MPLS Best Practices. Is it best practice to have an MPLS line going directly to the LAN switch or through a firewall first?

It seems to me you can control traffic using the MPLS router.  We have an MPLS line that connects offices A (us), B and C.  It hits a Sonic firewall on A (us) before it gets into our LAN.

Office "B" is trying to hit our local LAN and it works fine.  

Office "C" wants to hit our LAN and then use our internet gateway to get out to the net.  This doesn't seem to be working when they try to reach the net thru us though.  Is there a better way to accomplish this?



                          SONICWALL           SONIC WALL  
                                   |                              |
Office B-----MPLS------>Office A (us)---------OUR Internet---(office C is trying to go out thru us)
                                               | SONIC WALL
                                            mpls
                                          Office C    



Sp0ckyAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JFrederick29Commented:
Myself, I would personally have the private MPLS come into the switch instead of the Firewall as these are internal sites (unless you want to restrict traffic obviously).  This would also make your Sonicwall policy more simple and take care of the "hairpin" issue you are experiencing with traffic coming into the Firewall outside and going back out the outside interface to the Internet.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Broadband

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.