Hello, version 2 of Multicast is icmpv6 type 143, is it necessary for the proper functioning of IPv6?
Freebsd doesn't recognize it:
Num Abbrev. Description
1 unreach Destination unreachable
2 toobig Packet too big
3 timex Time exceeded
4 paramprob Invalid IPv6 header
128 echoreq Echo service request
129 echorep Echo service reply
130 groupqry Group membership query
130 listqry Multicast listener query
131 grouprep Group membership report
131 listenrep Multicast listener report
132 groupterm Group membership termination
132 listendone Multicast listener done
133 routersol Router solicitation
134 routeradv Router advertisement
135 neighbrsol Neighbor solicitation
136 neighbradv Neighbor advertisement
137 redir Shorter route exists
138 routrrenum Route renumbering
139 fqdnreq FQDN query
139 niqry Node information query
139 wrureq Who-are-you request
140 fqdnrep FQDN reply
140 nirep Node information reply
140 wrurep Who-are-you reply
200 mtraceresp mtrace response
201 mtrace mtrace messages
In this screenshot, version 2 is requested but I do not receive anything.
root@firewall:~ # netstat -sp icmp6
ісmpб:
97 calls to icmp_error
0 errors not generated in response to an icmp6 message
0 not generated because of rate limitation
Output histogram:
packet too big: 94
router solicitation: 1
router advertisement: 40
neighbor solicitation: 10
neighbor advertisement: 6
MLDV2 listener report: 10
0 messages with bad code fields
0 messages ‹ minimum length bad checksums
0 messages with bad length
0 total packets dropped due to failed ND Presolut
Input histogram:
unreach: 41
time exceed: 1
router solicitation: 1
router advertisement: 7025
neighbor solicitation: 6
neighbor advertisement: 5
Histogram of error messages to be generated:
3 no route
0 administratively prohibited
0 beyond scope
0 address unreachable
0 port unreachable
94 packet too big
0 time exceed transit
0 time exceed reassembly
0 erroneous header field
0 unrecognized next header
0 unrecognized option
0 redirect
0 unknown
0 message responses generated
0 messages with too many ND options
0 messages with bad ND options
0 bad neighbor solicitation messages
0 bad neighbor advertisement messages
0 bad router solicitation messages
0 bad router advertisement messages
0 bad redirect messages
0 default routers overflows
0 prefix overflows
0 neighbour entries overflows
0 redirect overflows