Table of Contents

Create an IPv4 MRoute

Create an mroute for IPv4 multicast on a logical router.
The Advanced Routing Engine allows you to Configure IPv4 Multicast routing for a logical router. Recall that PIM checks whether the firewall received the packets on the same interface that the firewall uses to send unicast packets back to the source, by checking the unicast RIB.
In a topology where you want unicast packets to take a different route from multicast packets, you can configure an mroute. An mroute is static unicast route that points to a multicast source; the mroute is stored in the multicast RIB (MRIB). PIM uses the mroute for the RPF checks, rather than using the unicast RIB for RPF checks. Whether PIM uses the MRIB or URIB for RPF checking depends on the RPF lookup mode configured for PIM. During RPF checks, the mroute used is the one with the longest prefix match.
An mroute is useful, for example, when some devices along the path do not support multicast routing, so a tunnel is used to connect multicast routers.
  1. Select
    Logical Routers
    and select a logical router.
  2. Select
    enable multicast protocol
  3. Create an mroute.
    1. Select
      an mroute by
      . The name must start with an alphanumeric character, underscore (_), or hyphen (-), and contain zero or more alphanumeric characters, underscore, or hyphen. No dot (.) or space is allowed.
    2. Enter the
      (IPv4 Address/Mask or address object) of the mroute, which is the multicast source or subnet to which the firewall performs an RPF check.
    3. Select the egress
      for the unicast route to the multicast source.
    4. Enter the IPv4 address (or address object) of the
      Next Hop
      router toward the source.
    5. Enter a
      for the route; range is 1 to 255.
    6. Click
  4. Click
  5. Commit
    your changes.

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