Black Box LR11xx Series Router Configurations Guide
Maximum hops is set to 32 and TTL is set to 127 in all mtrace packets as default. For mtrace to work:
IGMP must be enabled in the router
IGMP should be enabled on at least one interface.
21.1.2 mtrace Example
Traceroute using mtrace from 192.168.0.0 to 192.168.2.22 through group 225.254.254.254
Blackbox> mtrace 192.168.0.0 192.168.2.22 239.254.254.254
mtrace from 192.168.2.0 to 192.168.2.22 through group 225.254.254.254
Querying full reverse | path... |
|
| |
1 | 192.168.2.15 PIM | thresh^ 0 | 0 ms | |
2 | 192.168.2.7 PIM | thresh^ 0 | 2 ms |
|
3 | 192.168.2.5 PIM | thresh^ 0 | 674 | ms |
4 | 192.168.2.3 PIM | thresh^ 0 | 673 | ms |
5 | 192.168.2.2 PIM | thresh^ 0 | 674 | ms |
6 | 192.168.2.1 PIM | thresh^ 0 | 673 | ms |
Where in the line 4 192.168.2.3 PIM | thresh^ 0 673 ms: | |||
192.168.2.3 is the intermediate router 4 hops away from the destination. Multicast Protocol in use on this hop and TTL Threshold.
673 ms is the time taken to trace to be forwarded between hops.
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