Ciao,
Ho /var/log/messages pieni di questi messaggi di UFW che blocca comunicazioni
multicast che credevo di aver consentito:
Jun 8 16:15:12 dc01 kernel: [77637.657358] [UFW BLOCK] IN=eth0 OUT=
MAC=01:00:5e:40:00:00:00:21:5a:74:86:c1:08:00 SRC=192.168.0.18 DST=239.192.0.0
LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jun 8 16:15:14 dc01 kernel: [77640.115578] [UFW BLOCK] IN=eth0 OUT=
MAC=01:00:5e:00:00:fb:00:21:5a:74:86:c1:08:00 SRC=192.168.0.18 DST=224.0.0.251
LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Questo è l’output di ufw status numbered:
sudo ufw status numbered
Status: active
To Action From
-- ------ ----
[ 1] 22 ALLOW IN Anywhere
[ 2] 123 ALLOW IN 192.168.0.0/22
[ 3] 80 ALLOW IN 192.168.0.0/22
[ 4] 443 ALLOW IN 192.168.0.0/22
[ 5] 53 ALLOW IN 192.168.0.0/22
[ 6] 5298 ALLOW IN 192.168.0.0/22
[ 7] 5353 ALLOW IN 192.168.0.0/22
[ 8] 515 ALLOW IN 192.168.0.0/22
[ 9] 631 ALLOW IN 192.168.0.0/22
[10] 9100 ALLOW IN 192.168.0.0/22
[11] 445 ALLOW IN 192.168.0.0/22
[12] 137 ALLOW IN 192.168.0.0/22
[13] 138 ALLOW IN 192.168.0.0/22
[14] 139 ALLOW IN 192.168.0.0/22
[15] 389 ALLOW IN 192.168.0.0/22
[16] 3142 ALLOW IN 192.168.0.0/22
[17] 67/udp ALLOW IN 68/udp
[18] 3128 ALLOW IN 192.168.0.0/22
[19] 11000 ALLOW IN Anywhere
[20] 224.0.0.0/4/udp ALLOW IN Anywhere
[21] 224.0.0.0/4/udp ALLOW OUT Anywhere (out)
[22] 11007 ALLOW IN Anywhere
[23] 12000 ALLOW IN Anywhere
[24] 67/udp ALLOW IN 68/udp
[25] 11000 ALLOW IN Anywhere (v6)
[26] 11007 ALLOW IN Anywhere (v6)
[27] 12000 ALLOW IN Anywhere (v6)
Credevo che le regole [20] e [21] fossero sufficienti a consentire le
comunicazioni multicast, ma evidentemente ho sbagliato qualcosa.
Che ne pensate? Dove potrebbe essere l’errore?
grazie a tutti in anticipo,
gerlos
--
"Fairy tales are more than true, not because they tell us that dragons exist,
but because they tell us that dragons can be beaten."
G. K. Chesterton
<http://gerlos.altervista.org>
gerlos +- - - > gnu/linux registred user #311588
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