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Edge Server IPs RRS feed

  • Question

  • I know its not best practice, but can I use an Edge server with (1) NIC and (4) IPs on the single NIC?    ...   and if it is virtual....?

     

    What kind of problems would I expect?

    Monday, June 28, 2010 4:49 PM

Answers

  • Technically a single interface is possible (see 'Fuzzy Configuration #2 in this post):
    http://blogs.pointbridge.com/Blogs/schertz_jeff/Pages/Post.aspx?_ID=33

    But it is not recommended and just doesn't work in some scenarios:
    http://blogs.pointbridge.com/Blogs/schertz_jeff/Pages/Post.aspx?_ID=15

    Also it is possible to have a minimum of 2 IP addresses on the Edge server, 1 for the internal Edge and 1 for all three external Edge roles, but this requires using non-default ports (443 can only be used on one role) and does work.  Again, this is not best practice and it is almost always recommended to assign dedicated IP addresses to each external role.

    So for your case it could work, but really depends on the exact scenario.  I've seen specific brands of NIC in certain serves fail to work with a single interface, yet have heard of others deploying it this way with no issues, while other gave up after spending a lot of time troubleshooting problems.  I always start with the best practice approach and only move away from that if absolutely forced to do so.


    Jeff Schertz, PointBridge | MVP | MCITP: Enterprise Messaging | MCTS: OCS
    • Proposed as answer by Shafaquat Ali Friday, July 2, 2010 4:55 AM
    • Marked as answer by Ben-Shun Zhu Monday, July 5, 2010 11:08 AM
    Tuesday, June 29, 2010 11:05 AM

All replies

  • It is not possible.  The minimum is 2 NICs: External interface with 3 IPs and Internal interface with 1 IP.  Also need the two NICs on two different subnets.


    Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

    • Proposed as answer by TWHarrington Monday, June 28, 2010 5:07 PM
    • Unproposed as answer by Jeff SchertzMVP Tuesday, June 29, 2010 11:06 AM
    Monday, June 28, 2010 5:07 PM
  • Hi Tommer ,

    As you know that Edge Server is presenting internet connections and its based on out side of your network so how can you use same NIC for both interfaces ?

    I mean 1 interface is internal and the other 1 is external so its totally impossible that you could be able to use 1 NIC for Edge Server.

    For configuration earlier post is correct.

    Regards.

     

    Shafaquat Ali.


    M.C.I.T.P Exchange 2007/2010, M.C.I.T.P Windows Server 2008, M.C.T.S OCS Server 2007 R2
    Tuesday, June 29, 2010 4:40 AM
  • Technically a single interface is possible (see 'Fuzzy Configuration #2 in this post):
    http://blogs.pointbridge.com/Blogs/schertz_jeff/Pages/Post.aspx?_ID=33

    But it is not recommended and just doesn't work in some scenarios:
    http://blogs.pointbridge.com/Blogs/schertz_jeff/Pages/Post.aspx?_ID=15

    Also it is possible to have a minimum of 2 IP addresses on the Edge server, 1 for the internal Edge and 1 for all three external Edge roles, but this requires using non-default ports (443 can only be used on one role) and does work.  Again, this is not best practice and it is almost always recommended to assign dedicated IP addresses to each external role.

    So for your case it could work, but really depends on the exact scenario.  I've seen specific brands of NIC in certain serves fail to work with a single interface, yet have heard of others deploying it this way with no issues, while other gave up after spending a lot of time troubleshooting problems.  I always start with the best practice approach and only move away from that if absolutely forced to do so.


    Jeff Schertz, PointBridge | MVP | MCITP: Enterprise Messaging | MCTS: OCS
    • Proposed as answer by Shafaquat Ali Friday, July 2, 2010 4:55 AM
    • Marked as answer by Ben-Shun Zhu Monday, July 5, 2010 11:08 AM
    Tuesday, June 29, 2010 11:05 AM
  • Hi Jeff,

    Thanks for this post I really got very helpful information from this blog.

     

    Regards.

     

    Shafaquat Ali.


    M.C.I.T.P Exchange 2007/2010, M.C.I.T.P Windows Server 2008, M.C.T.S OCS Server 2007 R2
    Tuesday, June 29, 2010 2:58 PM