[Ninux-Wireless] rete mesh con gentoo e fonere, problemi con ipv6
Luca Postregna
luca.postregna a gmail.com
Gio 10 Maggio 2012 18:29:03 CEST
@giocacchino, a me funzionano i bridge su bat0 anche su gentoo :D
2012/5/10 Luca Postregna <luca.postregna a gmail.com>
> sembra abbia risolto, avevo scordato di mettere la bat0 nel bridge della
> fonera.
>
> cmq ho notato un comportamento di openwrt che non mi piace molto. sembra
> che al primo boot controlli i settings in /etc/config/network ed
> /etc/config/wirelss. e se non li piacciono li sovrascrive o li
> autocompleta. ad esempio io non ho bisogno dell'interfaccia wan sulle
> fonera, e lui me la mette da solo al primo boot. inoltre, sempre al primo
> boot non gli piace che abbia la bat0 nel bridge con eth0.1 e la rimuove da
> sola. ergo al primo boot devo sistemare le configurazioni e riavviare di
> nuovo, poi tutto ok.
>
>
>
> 2012/5/9 Luca Postregna <luca.postregna a gmail.com>
>
>> seguendo il consiglio di gioacchino, ora sul server ho la br0 connessa al
>> router domestico, mentre lato mesh ho semplicemente la bat0. ancora nessun
>> successo, queste alcune informazioni appena raccolte dal server (alla fine
>> un ping6 alla fonera connessa in ethernet)
>>
>> redo:~
>> > ip -6 a s
>> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
>> inet6 ::1/128 scope host
>> valid_lft forever preferred_lft forever
>> 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
>> inet6 fe80::250:fcff:fec0:d980/64 scope link
>> valid_lft forever preferred_lft forever
>> 3: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qlen 1000
>> inet6 fe80::206:93ff:fe30:317/64 scope link
>> valid_lft forever preferred_lft forever
>> 5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>> inet6 2001:470:7023:2:0:f8d1:114b:2e50/64 scope global
>> valid_lft forever preferred_lft forever
>> inet6 fe80::fcd2:91ff:fed9:a5eb/64 scope link
>> valid_lft forever preferred_lft forever
>> 6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>> inet6 2001:470:7023:1:0:f8d1:114b:2e50/64 scope global
>> valid_lft forever preferred_lft forever
>> inet6 fe80::206:93ff:fe30:317/64 scope link
>> valid_lft forever preferred_lft forever
>> 7: tun: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1280 qlen 500
>> inet6 2001:5c0:1400:a::701/128 scope global
>> valid_lft forever preferred_lft forever
>> 9: vethT6Y51M: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qlen
>> 1000
>> inet6 fe80::2406:aff:fee2:9f53/64 scope link
>> valid_lft forever preferred_lft forever
>>
>> redo:~
>> > ip -6 r s
>> 2001:470:7023:1::/64 dev br0 proto kernel metric 256
>> 2001:470:7023:2::/64 dev bat0 proto kernel metric 256
>> 2001:5c0:1400:a::701 dev tun proto kernel metric 256 mtu 1280 rtt 4ms
>> rttvar 6ms cwnd 10
>> 2000::/3 dev tun metric 1
>> fe80::/64 dev eth1 proto kernel metric 256
>> fe80::/64 dev bat0 proto kernel metric 256
>> fe80::/64 dev eth0 proto kernel metric 256
>> fe80::/64 dev br0 proto kernel metric 256
>> fe80::/64 dev tun proto kernel metric 256
>> fe80::/64 dev vethT6Y51M proto kernel metric 256
>> ff00::/8 dev eth1 metric 256
>> ff00::/8 dev bat0 metric 256
>> ff00::/8 dev eth0 metric 256
>> ff00::/8 dev br0 metric 256
>> ff00::/8 dev tun metric 256
>> ff00::/8 dev vethT6Y51M metric 256
>> default dev tun metric 1
>>
>> redo:~
>> > batctl o
>> [B.A.T.M.A.N. adv 2012.1.0, MainIF/MAC: eth1/00:50:fc:c0:d9:80 (bat0)]
>> Originator last-seen (#/255) Nexthop [outgoingIF]:
>> Potential nexthops ...
>> 06:18:84:d0:80:bd 0.569s (245) 00:18:84:d0:55:9c [ eth1]:
>> 00:18:84:d0:55:9c (245)
>> 00:18:84:d0:55:9c 0.479s (255) 00:18:84:d0:55:9c [ eth1]:
>> 00:18:84:d0:55:9c (255)
>> 06:18:84:d0:55:9d 0.789s (255) 00:18:84:d0:55:9c [ eth1]:
>> 00:18:84:d0:55:9c (255)
>>
>> redo:~
>> > batctl if
>> eth1: active
>>
>> redo:~
>> > ping6 -c 3 2001:470:7023:2:0:18:84d0:559c -I bat0
>> PING 2001:470:7023:2:0:18:84d0:559c(2001:470:7023:2:0:18:84d0:559c) 56
>> data bytes
>> From 2001:470:7023:2:0:f8d1:114b:2e50 icmp_seq=1 Destination unreachable:
>> Address unreachable
>> From 2001:470:7023:2:0:f8d1:114b:2e50 icmp_seq=2 Destination unreachable:
>> Address unreachable
>> From 2001:470:7023:2:0:f8d1:114b:2e50 icmp_seq=3 Destination unreachable:
>> Address unreachable
>>
>> --- 2001:470:7023:2:0:18:84d0:559c ping statistics ---
>> 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time
>> 1999ms
>>
>> dalla mia nubbiaggine penso che ci siano dei problemi di routing, ma se
>> fossero non capisco quali.
>>
>>
>>
>> 2012/5/9 Gioacchino Mazzurco <gmazzurco89 a gmail.com>
>>
>>> Non sono mai riuscito a far funzionare il bridging con bat0 su SO
>>> diversi da openwrt
>>>
>>> On 05/09/12 19:04, Luca Postregna wrote:
>>> > Salve,
>>> > sto cercando di configurare una piccola rete mesh, chissà forse in
>>> > futuro entrerà a far parte di ninux, ma per ora ancora non funziona.
>>> >
>>> > Al momento ho a disposizione un server/gateway gentoo ed una coppia di
>>> > fonera2.0g con openwrt. Per il routing utilizzo batman-adv 2012.1
>>> > (installato su tutti i nodi)e per ora vorrei basare il network dei nodi
>>> > e tutta la rete solo su ipv6 (se in futuro avrò la necessità
>>> > probabilmente fornirò ipv4 ai client via vpn con tinc). A tutti i nodi
>>> > gli ipv6 nella 2001:470:7023:2::/64 sono assegnati staticamente.
>>> >
>>> > Questo è un disegno esplicitativo http://ompldr.org/vZG9rYQ della
>>> > seguente configurazione,
>>> >
>>> > *1*. il server con due interfaccie di rete (br1 come wan e br2 per la
>>> > mesh, i bridge mi servono per eventuali macchine virtuali). Sul server
>>> > la br2 è creata a partire dalla bat0. Sul server gentoo nel runlevel di
>>> > default ho net.br1, net.br2 e radvd (questo mi serve per assegnare gli
>>> > ipv6 ai client della mesh, oltre che ai client della rete domestica).
>>> >
>>> > Di seguito le configurazioni di /etc/conf.d/net:
>>> >
>>> > > cat /etc/conf.d/net
>>> > config_eth0="null"
>>> >
>>> > rc_need_br1="net.eth0"
>>> >
>>> > brctl_br1="setfd 0"
>>> > bridge_br1="eth0"
>>> > config_br1="192.168.1.20/24 <http://192.168.1.20/24>
>>> > 2001:470:7023:1::f8d1:114b:2e50/64"
>>> > routes_br1="default via 192.168.1.1"
>>> > dns_servers_br1="192.168.1.1 8.8.8.8"
>>> >
>>> > brctl_br2="setfd 0"
>>> > bridge_br2="bat0"
>>> > config_br2="192.168.2.20/24 <http://192.168.2.20/24>"
>>> > config_br2="192.168.2.20/24 <http://192.168.2.20/24>
>>> > 2001:470:7023:2::f8d1:114b:2e50/64"
>>> >
>>> > preup (){
>>> > if test $IFACE == "br2"; then
>>> > modprobe batman-adv
>>> > ifconfig eth1 up
>>> > batctl if add eth1
>>> > fi
>>> > return 0
>>> > }
>>> >
>>> >
>>> > e di radvd.conf:
>>> >
>>> > > cat /etc/radvd.conf
>>> > interface br1
>>> > {
>>> > AdvLinkMTU 1452;
>>> > AdvSendAdvert on;
>>> > AdvManagedFlag off;
>>> > AdvOtherConfigFlag off;
>>> > prefix 2001:470:7023:1::/64
>>> > {
>>> > AdvOnLink on;
>>> > AdvAutonomous on;
>>> > AdvRouterAddr off;
>>> > };
>>> > };
>>> >
>>> > interface br2
>>> > {
>>> > AdvLinkMTU 1452;
>>> > AdvSendAdvert on;
>>> > AdvManagedFlag off;
>>> > AdvOtherConfigFlag off;
>>> > prefix 2001:470:7023:2::/64
>>> > {
>>> > AdvOnLink on;
>>> > AdvAutonomous on;
>>> > AdvRouterAddr off;
>>> > };
>>> > };
>>> >
>>> > quindi lo stato della rete ipv6 sul server:
>>> >
>>> > > ip -6 a s
>>> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
>>> > inet6 ::1/128 scope host
>>> > valid_lft forever preferred_lft forever
>>> > 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
>>> > inet6 fe80::250:fcff:fec0:d980/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 3: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qlen
>>> 1000
>>> > inet6 fe80::206:93ff:fe30:317/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 5: br1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 2001:470:7023:1:0:f8d1:114b:2e50/64 scope global
>>> > valid_lft forever preferred_lft forever
>>> > inet6 fe80::206:93ff:fe30:317/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 6: bat0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500
>>> > inet6 fe80::885b:46ff:fe22:2874/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 7: br2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 2001:470:7023:2:0:f8d1:114b:2e50/64 scope global
>>> > valid_lft forever preferred_lft forever
>>> > inet6 fe80::885b:46ff:fe22:2874/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 8: tun: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1280 qlen 500
>>> > inet6 2001:5c0:1400:a::51/128 scope global
>>> > valid_lft forever preferred_lft forever
>>> >
>>> >
>>> >
>>> > > ip -6 r s
>>> > 2001:470:7023:1::/64 dev br1 proto kernel metric 256
>>> > 2001:470:7023:2::/64 dev br2 proto kernel metric 256
>>> > 2001:5c0:1400:a::51 dev tun proto kernel metric 256 mtu 1280
>>> > 2000::/3 dev tun metric 1
>>> > fe80::/64 dev eth0 proto kernel metric 256
>>> > fe80::/64 dev br1 proto kernel metric 256
>>> > fe80::/64 dev eth1 proto kernel metric 256
>>> > fe80::/64 dev bat0 proto kernel metric 256
>>> > fe80::/64 dev br2 proto kernel metric 256
>>> > fe80::/64 dev tun proto kernel metric 256
>>> > ff00::/8 dev eth0 metric 256
>>> > ff00::/8 dev br1 metric 256
>>> > ff00::/8 dev eth1 metric 256
>>> > ff00::/8 dev bat0 metric 256
>>> > ff00::/8 dev br2 metric 256
>>> > ff00::/8 dev tun metric 256
>>> > default dev tun metric 1
>>> >
>>> >
>>> > *2*. entrambe le fonera hanno la stessa configurazione: due interfaccie
>>> > wifi ap0 ed adhoc0. adhoc0 e eth0.2 sono in pasto a batman-adv e mi
>>> > fanno la bat0. ap0, eth0.1, e bat0 mi fanno al br-lan. I file di
>>> > configurazione delle due fonera sono identici. Di seguito i dati presi
>>> > dalla fonA connessa in ethernet al server gentoo:
>>> >
>>> > root a drei:~# cat /etc/config/network
>>> > config 'interface' 'loopback'
>>> > option 'ifname' 'lo'
>>> > option 'proto' 'static'
>>> > option 'ipaddr' '127.0.0.1'
>>> > option 'netmask' '255.0.0.0'
>>> >
>>> > config 'interface' 'lan'
>>> > option 'type' 'bridge'
>>> > option 'proto' 'none'
>>> > option 'accept_ra' '1'
>>> > option 'ifname' 'eth0.1'
>>> >
>>> > config 'interface' 'mesh0'
>>> > option 'ifname' 'adhoc0'
>>> > option 'mtu' '1528'
>>> > option 'proto' 'none'
>>> >
>>> > config 'interface' 'mesh1'
>>> > option 'ifname' 'eth0.2'
>>> > option 'proto' 'none'
>>> >
>>> >
>>> > root a drei:~# cat /etc/config/wireless
>>> > config wifi-device wifi0
>>> > option type atheros
>>> > option channel 11
>>> >
>>> > config wifi-iface
>>> > option device wifi0
>>> > option ifname ap0
>>> > option mode ap
>>> > option network lan
>>> > option ssid kozlicAP
>>> >
>>> > config wifi-iface
>>> > option device wifi0
>>> > option ifname adhoc0
>>> > option mode adhoc
>>> > option network mesh0
>>> > option ssid kozlicMESH
>>> >
>>> >
>>> > root a drei:~# cat /etc/config/batman-adv
>>> > config 'mesh' 'bat0'
>>> > option 'interfaces' 'mesh0 mesh1'
>>> > option 'aggregated_ogms'
>>> > option 'ap_isolation'
>>> > option 'bonding'
>>> > option 'fragmentation'
>>> > option 'gw_bandwidth'
>>> > option 'gw_mode' 'client'
>>> > option 'gw_sel_class'
>>> > option 'log_level'
>>> > option 'orig_interval'
>>> > option 'vis_mode'
>>> >
>>> >
>>> > root a drei:~# cat /etc/rc.local
>>> > #!/bin/sh
>>> >
>>> > IPV6PREFIX="2001:470:7023:2"
>>> > LAN="br-lan"
>>> >
>>> > IPV6=$IPV6PREFIX::$(cat /sys/class/net/eth0/address |awk -F:
>>> '{print
>>> > $1$2":"$3$4":"$5$6}')
>>> > echo $IPV6
>>> >
>>> > ip addr add $IPV6/64 dev $LAN
>>> > ip addr add 192.168.254.1/24 <http://192.168.254.1/24> dev $LAN
>>> >
>>> > batman-adv reload
>>> >
>>> > exit 0
>>> >
>>> >
>>> >
>>> > root a drei:~# ip -6 a s
>>> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
>>> > inet6 ::1/128 scope host
>>> > valid_lft forever preferred_lft forever
>>> > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
>>> > inet6 fe80::218:84ff:fed0:559c/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 4: eth0.1 a eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 fe80::218:84ff:fed0:559c/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 5: eth0.2 a eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 fe80::218:84ff:fed0:559c/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 6: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 2001:470:7023:2:0:18:84d0:559c/64 scope global
>>> > valid_lft forever preferred_lft forever
>>> > inet6 fe80::218:84ff:fed0:559c/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 8: ap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
>>> > inet6 fe80::218:84ff:fed0:559d/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> > 9: adhoc0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1528
>>> > inet6 fe80::418:84ff:fed0:559d/64 scope link
>>> > valid_lft forever preferred_lft forever
>>> >
>>> >
>>> > root a drei:~# ip -6 r s
>>> > 2001:470:7023:2::/64 dev br-lan proto kernel metric 256 mtu 1500
>>> > advmss 1440 hoplimit 0
>>> > fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440
>>> > hoplimit 0
>>> > fe80::/64 dev eth0.1 proto kernel metric 256 mtu 1500 advmss
>>> 1440
>>> > hoplimit 0
>>> > fe80::/64 dev br-lan proto kernel metric 256 mtu 1500 advmss
>>> 1440
>>> > hoplimit 0
>>> > fe80::/64 dev eth0.2 proto kernel metric 256 mtu 1500 advmss
>>> 1440
>>> > hoplimit 0
>>> > fe80::/64 dev ap0 proto kernel metric 256 mtu 1500 advmss 1440
>>> > hoplimit 0
>>> > fe80::/64 dev adhoc0 proto kernel metric 256 mtu 1528 advmss
>>> 1468
>>> > hoplimit 0
>>> >
>>> >
>>> > Questa è la situazione di batman sul server:
>>> >
>>> > > batctl o
>>> > [B.A.T.M.A.N. adv 2012.1.0, MainIF/MAC: eth1/00:50:fc:c0:d9:80
>>> (bat0)]
>>> > Originator last-seen (#/255) Nexthop [outgoingIF]:
>>> > Potential nexthops ...
>>> > 06:18:84:d0:80:bd 0.393s (232) 00:18:84:d0:55:9c [ eth1]:
>>> > 00:18:84:d0:55:9c (232)
>>> > 00:18:84:d0:55:9c 0.373s (253) 00:18:84:d0:55:9c [ eth1]:
>>> > 00:18:84:d0:55:9c (253)
>>> > 06:18:84:d0:55:9d 0.342s (255) 00:18:84:d0:55:9c [ eth1]:
>>> > 00:18:84:d0:55:9c (255)
>>> >
>>> > Questo è batman sulla fonera connessa in ethernet al server:
>>> >
>>> > root a drei:~# batctl o
>>> > [B.A.T.M.A.N. adv 2012.1.0, MainIF/MAC: adhoc0/06:18:84:d0:55:9d
>>> (bat0)]
>>> > Originator last-seen (#/255) Nexthop [outgoingIF]:
>>> > Potential nexthops ...
>>> > 00:50:fc:c0:d9:80 0.260s (255) 00:50:fc:c0:d9:80 [ eth0.2]:
>>> > 00:50:fc:c0:d9:80 (255)
>>> > 06:18:84:d0:80:bd 0.280s (233) 06:18:84:d0:80:bd [ adhoc0]:
>>> > 06:18:84:d0:80:bd (233)
>>> >
>>> > Qual'è il problema? I nodi nella 2001:470:7023:2::/64 non si pingano!
>>> >
>>> > Ogni aiuto è apprezzato.
>>> >
>>> > Saluti,
>>> > LP
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> >
>>> > http://luca.postregna.name
>>> > Luca Postregna
>>> >
>>> >
>>> >
>>> > _______________________________________________
>>> > Wireless mailing list
>>> > Wireless a ml.ninux.org
>>> > http://ml.ninux.org/mailman/listinfo/wireless
>>>
>>
>>
>>
>> --
>>
>> http://luca.postregna.name
>> Luca Postregna
>>
>>
>
>
> --
>
> http://luca.postregna.name
> Luca Postregna
>
>
--
http://luca.postregna.name
Luca Postregna
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