[Ninux-Wireless] rete mesh con gentoo e fonere, problemi con ipv6
Luca Postregna
luca.postregna a gmail.com
Gio 10 Maggio 2012 18:33:54 CEST
uhm... forse potrei utilizzare uci in rc.local per aggiungere le cose che
modifica...ora ci provo!
2012/5/10 Gioacchino Mazzurco <gmazzurco89 a gmail.com>
> E' normale infatti il firmware eigennet fa le cose al secondo boot
>
> On 05/10/12 18:25, Luca Postregna wrote:
> > 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
> > <mailto: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
> > <mailto: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/vZG9rYQdella
> > > 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>
> > <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>
> > <http://192.168.2.20/24>"
> > > config_br2="192.168.2.20/24 <http://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>
> > <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
> > >
> > >
> > >
> > > _______________________________________________
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> >
> >
> >
> >
> > --
> >
> > http://luca.postregna.name
> > Luca Postregna
> >
> >
> >
> >
> > --
> >
> > http://luca.postregna.name
> > Luca Postregna
> >
>
--
http://luca.postregna.name
Luca Postregna
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