Je ne me souviens pas bien du fonctionnement du multicast mais je précisais bien "diverses interfaces" car je me dis qu'elles doivent bien apparaître quelque part.
Quand tu lances, dans un shell (ah ! les joies immarcescibles de Terminal) la commande ifconfig, tu vois toutes les interfaces réseaux définies sur ton Mac, physiques comme virtuelles.
ben non à priori.... ?
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Last login: Thu Apr 28 16:42:14 on ttys000
imac-de-lucien-1:~ lucienpeyret$ ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
options=3<RXCSUM,TXCSUM>
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
nd6 options=1<PERFORMNUD>
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=10b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV>
ether 40:6c:8f:44:8a:2a
inet6 fe80::426c:8fff:fe44:8a2a%en0 prefixlen 64 scopeid 0x4
inet 192.168.1.12 netmask 0xffffff00 broadcast 192.168.1.255
nd6 options=1<PERFORMNUD>
media: autoselect (1000baseT <full-duplex,flow-control>)
status: active
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 7c:c3:a1:b5:14:99
inet6 fe80::7ec3:a1ff:feb5:1499%en1 prefixlen 64 scopeid 0x5
inet 192.168.1.18 netmask 0xffffff00 broadcast 192.168.1.255
nd6 options=1<PERFORMNUD>
media: autoselect
status: active
en2: flags=963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX> mtu 1500
options=60<TSO4,TSO6>
ether d2:00:12:3b:f2:e0
media: autoselect <full-duplex>
status: inactive
fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078
lladdr 00:3e:e1:ff:fe:23:bf:2e
nd6 options=1<PERFORMNUD>
media: autoselect <full-duplex>
status: inactive
p2p0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 2304
ether 0e:c3:a1:b5:14:99
media: autoselect
status: active
bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=63<RXCSUM,TXCSUM,TSO4,TSO6>
ether 42:6c:8f:44:82:00
Configuration:
id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
ipfilter disabled flags 0x2
member: en2 flags=3<LEARNING,DISCOVER>
ifmaxaddr 0 port 6 priority 0 path cost 0
nd6 options=1<PERFORMNUD>
media: <unknown type>
status: inactive
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