pimd/DEBUG

   1 <<<<<<< HEAD
   2
   3 =======
   4 >>>>>>> origin/master
   5 DEBUG HINTS
   6
   7   - Check the source is issuing multicast packets with TTL high enough
   8     to reach the recipients.
   9
  10   - Check the multicast packets are not being dropped due to
  11     fragmentation problems.
  12
  13   - Three easy options to test IGMPv3 joins from the receiver host:
  14
  15     1) Configure pimd on the receiver host with "ip igmp join":
  16
  17        interface eth0
  18         ip pim ssm
  19         ip igmp join 239.1.1.1 1.1.1.1
  20
  21     2) Use test_igmpv3_join command-line utility (provided with qpimd):
  22
  23        test_igmpv3_join eth0 239.1.1.1 1.1.1.1
  24
  25     3) User the Stig Venaas' ssmping utility:
  26
  27        ssmping -I eth0 1.1.1.1
  28
  29        To see multicast responses with ssmping, you will need run on
  30        the host 1.1.1.1 either:
  31        a) Stig Venaas' ssmpingd command-line daemon
  32           OR
  33        b) qpimd built-in ssmpingd service:
  34           conf t
  35             ip ssmpingd 1.1.1.1
  36
  37   - Using nepim to generate multicast stream from 1.1.1.1 to 239.1.1.1:
  38
  39     Notices:
  40
  41     a) The host unicast address 1.1.1.1 must be reachable from the
  42     receiver.
  43
  44     b) nepim tool requires the receiver must be started *before* the
  45     sender.
  46
  47     First: Start a receiver for that stream by running:
  48
  49     nepim -q -6 -j 1.1.1.1+239.1.1.1@eth0
  50     (Remember of enabling both "ip pim ssm" and "ip igmp" under eth0.)
  51
  52     Second: Start the sender at host 1.1.1.1.
  53
  54     The following command generates a 100-kbps multicast stream for
  55     channel 1.1.1.1,239.1.1.1 with TTL 10 and 1000-byte payload per UDP
  56     packet (to avoid fragmentation):
  57
  58     nepim -6 -M -b 1.1.1.1 -c 239.1.1.1 -T 10 -W 1000 -r 100k -a 1d
  59
  60
  61
  62 SAMPLE DEBUG COMMANDS
  63
  64   conf t
  65    int eth0
  66     ip pim ssm
  67
  68   test pim receive hello eth0 192.168.0.2 600 10 111 1000 3000 0
  69   test pim receive join eth0 600 192.168.0.1 192.168.0.2 239.1.1.1 1.1.1.1
  70
  71   show ip pim join
  72
  73
  74 INTEROPERABILITY WITH CISCO
  75
  76   ! Cisco IP Multicast command reference:
  77   ! ftp://ftpeng.cisco.com/ipmulticast/Multicast-Commands
  78   !
  79   ip pim ssm default ! enable SSM mode for groups 232.0.0.0/8
  80   ip multicast-routing
  81   ip pim state-refresh disable
  82   no ip pim dm-fallback
  83   !
  84   interface FastEthernet0
  85    ip pim sparse-mode
  86    ip igmp version 3
  87
  88 -x-