VMGuru VMGuru VMGuru
  • Toggle menu
    VMGuru VMGuru VMGuru
    • Cloud Management
      • Cloud Automation Services
      • vRealize Automation
      • vRealize Log Insight
      • vRealize Operations
      • vRealize Network Insight
    • Troubleshooting
    • Product Reviews
    • Networking
    • Scripting
    • About

    Blog

    Home > Whitepapers & How To's > GRE Tunnels & Dynamic Routing in NSX 6.4

    GRE Tunnels & Dynamic Routing in NSX 6.4

    by 23 February 2018
    Whitepapers & How To's 3

    Related Posts:
    • nsx-gre-get-result by Martijn Smit
    • nsx-6.4-gre-tunnel-get by Martijn Smit
    • nsx-6.4-gre-ping by Martijn Smit
    • nsx-6.4-gre-topo by Martijn Smit
    • nsx-6.4-gre-bgp-result by Martijn Smit
    Tags In
    API Networking NSX
    Share
    1210 / 1271

    Related Posts

    Top VMware Horizon support issues

    Whitepapers & How To's 1

    A low budget SMB environment – Part 3: Configure and Run

    Install & Configuration, Whitepapers & How To's 0

    Best practices XenApp on vSphere

    Whitepapers & How To's 5

    3 Comments

    1. Gerd 4 March 2018 at 19:06

      Hi Martijn, thanks for the interesting infos!

      A couple of questions to the GRE tunnel topic:
      – What about the MTU size? Can I define this somewhere?
      – What about the DF bit? Will it be honored?
      – Will the GRE tunnel source do fragmentation and the destination reassembling?
      – How to configure this?

      Thanks and ciao, Gerd

      Log in to Reply
      1. smitmartijn 5 March 2018 at 15:19

        Hey Gerd,

        The MTU size is defined in the section. I’ve had it at 1400 because the underlying network was 1500 bytes.

        I have not tested the DF bit yet, still something I want to do. It would be cool if it didn’t honour it and reassembled the packets through the tunnel, so we can use VXLAN over 1500 MTU networks (it would also interesting to know what performance penalty that will bring).

        Log in to Reply
    2. manjunath g 30 November 2018 at 17:14

      Hi Martijn,

      Can we have IPsec for the same GRE using below procedure,

      If i create IPsec using same peer IP and interesting traffic with BGP peer IP , then create the GRE using API with same peer IP and tunnel IP as BGP peer IP.

      Thanks & Regards, Manjunath

      Log in to Reply

    Leave a Reply Cancel reply

    You must be logged in to post a comment.

    WordPress Theme built by Shufflehound.