[ninux-dev] Aiuto per output JSONDoc generato da BATMAN/ALFRED

Germano Massullo germano.massullo at gmail.com
Sat Oct 10 16:48:25 CEST 2015


Nella mia attività di implementazione dell'output in formato NetJSON
all'interno di {BATMAN/ALFRED}-vis ho creato un ambiente con tre
macchine virtuali, dopodiché ho fatto generare a batman-adv un output
JSONDoc che descrive la topologia della rete (allegato jsondoc_commented)
Tuttavia, vedendo all'interno del file indirizzi MAC a me sconosciuti,
ho mandato un messaggio [1] alla mailing list di BATMAN/ALFRED. La
risposta [2] è stata molto chiara, tuttavia rimangono dei dubbi che
vorrei chiarire con voi prima di mandare un altro eventuale messaggio
alla sopracitata mailing list.
Dopo aver letto il messaggio [2], ho pensato: "ok, gli indirizzi MAC che
non capivo sono così classificati
33:33:00:00:00:01 (mcast) IPv6 neighbor discovery protocol;
33:33:ff:75:15:f2 è (mcast) some other IPv6 multicast;
01:00:5e:00:00:01 è (mcast) IP multicast
tuttavia, come mai 33:33:ff:75:15:f2 e  01:00:5e:00:00:01 appaiono
solamente nelle proprietà della macchina virtuale 08:00:27:83:e5:59 ???"


[1]
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2015-October/013719.html
[2]
https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2015-October/013720.html
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1532 qdisc fq_codel master bat0 state UP group default qlen 1000
    link/ether 08:00:27:83:e5:59 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.119/24 brd 192.168.1.255 scope global dynamic enp0s3
       valid_lft 42000sec preferred_lft 42000sec
    inet6 fdd7:4778:df22::d99/128 scope global dynamic 
       valid_lft 85202sec preferred_lft 85202sec
    inet6 fdd7:4778:df22:0:a00:27ff:fe83:e559/64 scope global noprefixroute dynamic 
       valid_lft 7108sec preferred_lft 1708sec
    inet6 fe80::a00:27ff:fe83:e559/64 scope link 
       valid_lft forever preferred_lft forever
3: bat0 at NONE: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default 
    link/ether 2a:d7:37:c6:84:fa brd ff:ff:ff:ff:ff:ff



1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1532 qdisc fq_codel master bat0 state UP group default qlen 1000
    link/ether 08:00:27:8f:b1:c2 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.237/24 brd 192.168.1.255 scope global dynamic enp0s3
       valid_lft 41678sec preferred_lft 41678sec
    inet6 fdd7:4778:df22::a3d/128 scope global dynamic 
       valid_lft 84879sec preferred_lft 84879sec
    inet6 fdd7:4778:df22:0:a00:27ff:fe8f:b1c2/64 scope global noprefixroute dynamic 
       valid_lft 6966sec preferred_lft 1566sec
    inet6 fe80::a00:27ff:fe8f:b1c2/64 scope link 
       valid_lft forever preferred_lft forever
3: bat0 at NONE: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default 
    link/ether c6:84:ae:77:3e:f1 brd ff:ff:ff:ff:ff:ff



1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1532 qdisc fq_codel master bat0 state UP group default qlen 1000
    link/ether 08:00:27:a9:8d:af brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.182/24 brd 192.168.1.255 scope global dynamic enp0s3
       valid_lft 39217sec preferred_lft 39217sec
    inet6 fdd7:4778:df22::1dd/128 scope global dynamic 
       valid_lft 86019sec preferred_lft 86019sec
    inet6 fdd7:4778:df22:0:a00:27ff:fea9:8daf/64 scope global noprefixroute dynamic 
       valid_lft 6883sec preferred_lft 1483sec
    inet6 fe80::a00:27ff:fea9:8daf/64 scope link 
       valid_lft forever preferred_lft forever
3: bat0 at NONE: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default 
    link/ether a2:7f:aa:75:15:f2 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a07f:aaff:fe75:15f2/64 scope link 
       valid_lft forever preferred_lft forever
-------------- next part --------------
{
  "source_version" : "2015.1-2-g4384c2b-dirty",
  "algorithm" : 4,
  "vis" : [
    { "primary" : "08:00:27:8f:b1:c2",        # enp0s3 2nd virtual machine
      "neighbors" : [
         { "router" : "08:00:27:8f:b1:c2",    # enp0s3 2nd virtual machine
           "neighbor" : "08:00:27:a9:8d:af",  # enp0s3 3rd virtual machine
           "metric" : "1.000" },
         { "router" : "08:00:27:8f:b1:c2",    # enp0s3 2nd virtual machine
           "neighbor" : "08:00:27:83:e5:59",  # enp0s3 1st virtual machine
           "metric" : "1.000" }
      ],
      "clients" : [
        "33:33:00:00:00:01",                  # non existing in file ip_addr
        "c6:84:ae:77:3e:f1"                   # bat0 2nd virtual machine
      ]
    },
    { "primary" : "08:00:27:83:e5:59",        # enp0s3 1st virtual machine
      "neighbors" : [
         { "router" : "08:00:27:83:e5:59",    # enp0s3 1st virtual machine
           "neighbor" : "08:00:27:a9:8d:af",  # enp0s3 3rd virtual machine
           "metric" : "1.000" },
         { "router" : "08:00:27:83:e5:59",    # enp0s3 1st virtual machine
           "neighbor" : "08:00:27:8f:b1:c2",  # enp0s3 2nd virtual machine
           "metric" : "1.000" }
      ],
      "clients" : [
        "33:33:00:00:00:01",
        "2nd:d7:37:c6:84:fa"                   # bat0 1st virtual machine
      ]
    },
    { "primary" : "08:00:27:a9:8d:af",        # enp0s3 3rd virtual machine
      "neighbors" : [
         { "router" : "08:00:27:a9:8d:af",    # enp0s3 3rd virtual machine
           "neighbor" : "08:00:27:8f:b1:c2",  # enp0s3 2nd virtual machine
           "metric" : "1.000" },
         { "router" : "08:00:27:a9:8d:af",    # enp0s3 3rd virtual machine
           "neighbor" : "08:00:27:83:e5:59",  # enp0s3 1st virtual machine
           "metric" : "1.016" }
      ],
      "clients" : [
        "33:33:ff:75:15:f2",                  # non existing in file ip_addr
        "33:33:00:00:00:01",                  # non existing in file ip_addr
        "a2:7f:aa:75:15:f2",                  # bat0 3rd virtual machine
        "01:00:5e:00:00:01"                   # non existing in file ip_addr
      ]
    }
  ]
}


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