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T-X/mcast-test.md

Last active May 14, 2016 13:32
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mcast-test.md
  • Are any IGMP/MLD messages coming from the mesh?
  • Is the node / br-client regularly (20s) querying (IGMP/MLD query messages)?
  • Are IPv6 destinations still reachable fine?
  • With two hosts connected to an AP via wifi, do multicast packets arrive with a mangled destination MAC address?
  • Does the output of "$ bridge mdb show dev br-client" look sane? That is, are there no entries for bat0? (package: http://openwrt.draic.info/chaos_calmer/15.05/ar71xx/generic/packages/base/ip-bridge_4.0.0-1_ar71xx.ipk)
  • Does removing the MULTICAST_OUT_ICMPV6 rules in /lib/gluon/ebtables/105-mcast-drop-mld still prevent IGMP/MLD messages from the mesh?
  • Put two to eight nodes in a room, connected to the mesh. How greenish or redish are the link qualities shown with or without these patches?
  • Are IPv6 link-local multicast addresses from hosts on the same node still pingable fine? (e.g. get address via "$ ip maddr show dev $dev" on a host, try to ping it from another host on the same node)
  • Optional: Try to stream a video with VLC via multicast. Does it affect any other wifi user on the same node? Compare with multicast snooping disabled.
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