[Dnsmasq-discuss] IPv6 dhcp/ra-issue
Stéphane Guedon
stephane at 22decembre.eu
Mon Apr 21 13:35:57 UTC 2014
Le lundi 21 avril 2014, 15:28:30 Oliver Rath a écrit :
> Hi list,
>
> Im trying to give my network-computers IPv6-Addresses constructed
> from ppp0. In my config I get from my provider i.e. these (dynamic)
> IPv4 and IPv6-addresses:
>
> # ifconfig ppp0
> ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1492
> inet 80.137.126.83 netmask 255.255.255.255 destination
> 87.186.224.66
> inet6 fe80::43c:5b54:cea:b7ea prefixlen 10 scopeid
> 0x20<link> inet6 2003:62:487f:b168:43c:5b54:cea:b7ea prefixlen 64
> scopeid 0x0<global>
> ppp txqueuelen 3 (Punkt-zu-Punkt Verbindung)
> RX packets 2546359 bytes 3258224683 (3.0 GiB)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 1550070 bytes 133189854 (127.0 MiB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>
> One of my additional interfaces has this address:
> # ifconfig p3p1
> p3p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
> inet 192.168.2.254 netmask 255.255.255.0 broadcast
> 192.168.2.255 inet6 fe80::210:f3ff:fe07:f7bf prefixlen 64 scopeid
> 0x20<link> ether 00:10:f3:07:f7:bf txqueuelen 1000 (Ethernet) RX
> packets 2806761 bytes 3337921408 (3.1 GiB)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 1832066 bytes 326375284 (311.2 MiB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>
>
>
> If I understand right, ive got an IPv6-subnet with the ability of
> ~250 clients (Telekom Germany), directly addressable from internet.
> Now i want to configure dnsmasq in a way, that the clients get
> IPv4- (works, internal only) and IPv6-addresses in a from internet
> addressable way.
>
> Imho the fe80.. number is the *router*-ipv6-address, the 2003:...
> the *host* ipv6-address. Now my clients should also get an
> ipv6-router *and* -host address. Is this right?
>
> My dnsmasq.conf (stripped):
>
> except-interface=ppp0
> dhcp-range=set:gw2,192.168.2.50,192.168.2.150,255.255.255.0,12h
> dhcp-range=tag:gw2,::,constructor:ppp0
> ddhcp-option=tag:gw2,128,192.168.2.254
> enable-ra
> dhcp-option=mtu,1492
> dhcp-option=option6:dns-server,[::]
> dhcp-option=252,"http://heimserver/wpad.dat"
> log-queries
> log-dhcp
>
> Now I would assume, that my clientpc (p3p1 is bridged with wlan-ap)
> would get an fe80:.. and another, from internet routable address.
> While my card has the mac-address 00:21:6a:37:3f:72, i would assume
> getting an IPv6 address like 2003:62:487f:b168:0021:6aFF:FE373f:72,
> but he doesnt:
>
> wlan0 on my client-pc:
>
> # ifconfig wlan0
> wlan0 Link encap:Ethernet Hardware Adresse 00:21:6a:37:3f:72
> inet Adresse:192.168.2.100 Bcast:192.168.2.255
> Maske:255.255.255.0
> inet6-Adresse: fe80::221:6aff:fe37:3f72/64
> Gültigkeitsbereich:Verbindung
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
> RX-Pakete:2981577 Fehler:0 Verloren:0 Überläufe:0
> Fenster:0 TX-Pakete:2979080 Fehler:0 Verloren:0 Überläufe:0
> Träger:0 Kollisionen:0 Sendewarteschlangenlänge:1000
> RX-Bytes:3059635559 (3.0 GB) TX-Bytes:2883630423 (2.8 GB)
>
>
> Here /var/log/syslog on my client (sorry for the german parts):
>
> Apr 21 14:57:29 hp dhclient: DHCPREQUEST of 192.168.2.100 on wlan0
> to 255.255.255.255 port 67 (xid=0x48327e63)
> Apr 21 14:57:29 hp dhclient: DHCPACK of 192.168.2.100 from
> 192.168.2.254 Apr 21 14:57:29 hp dhclient: bound to 192.168.2.100
> -- renewal in 21016 seconds.
> Apr 21 14:57:29 hp dhclient: DHCPACK of 192.168.2.100 from
> 192.168.2.254 Apr 21 14:57:29 hp dhclient: bound to 192.168.2.100
> -- renewal in 21016 seconds.
> Apr 21 14:57:29 hp NetworkManager[827]: <info> (wlan0): DHCPv4 state
> changed preinit -> reboot
> Apr 21 14:57:29 hp NetworkManager[827]: <info> address
> 192.168.2.100 Apr 21 14:57:29 hp NetworkManager[827]: <info>
> prefix 24 (255.255.255.0) Apr 21 14:57:29 hp NetworkManager[827]:
> <info> gateway 192.168.2.254 Apr 21 14:57:29 hp
> NetworkManager[827]: <info> hostname 'hp' Apr 21 14:57:29 hp
> NetworkManager[827]: <info> nameserver '192.168.2.254' Apr 21
> 14:57:29 hp NetworkManager[827]: <info> Activation (wlan0) Stage 5
> of 5 (IPv4 Configure Commit) scheduled...
> Apr 21 14:57:29 hp NetworkManager[827]: <info> Activation (wlan0)
> Stage 5 of 5 (IPv4 Commit) started...
> Apr 21 14:57:29 hp avahi-daemon[801]: Joining mDNS multicast group
> on interface wlan0.IPv4 with address 192.168.2.100.
> Apr 21 14:57:29 hp avahi-daemon[801]: New relevant interface
> wlan0.IPv4 for mDNS.
> Apr 21 14:57:29 hp avahi-daemon[801]: Registering new address record
> for 192.168.2.100 on wlan0.IPv4.
> Apr 21 14:57:30 hp NetworkManager[827]: <info> (wlan0): device state
> change: ip-config -> secondaries (reason 'none') [70 90 0] Apr 21
> 14:57:30 hp NetworkManager[827]: <info> Activation (wlan0) Stage 5
> of 5 (IPv4 Commit) complete.
> Apr 21 14:57:30 hp NetworkManager[827]: <info> (wlan0): device state
> change: secondaries -> activated (reason 'none') [90 100 0] Apr 21
> 14:57:30 hp NetworkManager[827]: <info> NetworkManager state is now
> CONNECTED_GLOBAL
> Apr 21 14:57:30 hp NetworkManager[827]: <info> Policy set
> 'WLAN-001F3FD648F9' (wlan0) as default for IPv4 routing and DNS.
> Apr 21 14:57:30 hp NetworkManager[827]: <info> Writing DNS
> information to /sbin/resolvconf
> Apr 21 14:57:30 hp dnsmasq[1563]: vorgelagerte Server von DBus
> gesetzt Apr 21 14:57:30 hp dnsmasq[1563]: Benutze Namensserver
> 192.168.2.254#53 Apr 21 14:57:31 hp avahi-daemon[801]: Joining mDNS
> multicast group on interface wlan0.IPv6 with address
> fe80::221:6aff:fe37:3f72. Apr 21 14:57:31 hp avahi-daemon[801]: New
> relevant interface wlan0.IPv6 for mDNS.
> Apr 21 14:57:31 hp avahi-daemon[801]: Registering new address record
> for fe80::221:6aff:fe37:3f72 on wlan0.*.
> Apr 21 14:57:41 hp NetworkManager[827]: <info> Activation (wlan0)
> successful, device activated.
> Apr 21 14:57:41 hp dbus[684]: [system] Activating service
> name='org.freedesktop.nm_dispatcher' (using servicehelper)
> Apr 21 14:57:41 hp wpa_supplicant[1062]: wlan0:
> CTRL-EVENT-SCAN-STARTED Apr 21 14:57:41 hp dbus[684]: [system]
> Successfully activated service 'org.freedesktop.nm_dispatcher'
> Apr 21 14:57:48 hp ntpdate[8010]: adjust time server 91.189.94.4
> offset 0.007383 sec
> Apr 21 14:57:50 hp NetworkManager[827]: <info> (wlan0): IP6 addrconf
> timed out or failed.
> Apr 21 14:57:50 hp NetworkManager[827]: <info> Activation (wlan0)
> Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
> Apr 21 14:57:50 hp NetworkManager[827]: <info> Activation (wlan0)
> Stage 4 of 5 (IPv6 Configure Timeout) started...
> Apr 21 14:57:50 hp NetworkManager[827]: <info> Activation (wlan0)
> Stage 4 of 5 (IPv6 Configure Timeout) complete.
> Apr 21 14:59:27 hp wpa_supplicant[1062]: message repeated 2 times: [
> wlan0: CTRL-EVENT-SCAN-STARTED ]
> Apr 21 14:59:31 hp wpa_supplicant[1062]: nl80211:
> send_and_recv->nl_recvmsgs failed: -33
> Apr 21 15:00:50 hp wpa_supplicant[1062]: wlan0:
> CTRL-EVENT-SCAN-STARTED
>
>
> What Im doing wrong?
>
> Tfh!
> Oliver
>
>
> _______________________________________________
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
I don't understand many of what you say. But your setup looks like
mine, and I wrote an article about that :
http://www.22decembre.eu/2014/04/14/local-dns-setup-with-dnsmasq-nsd-and-unbound/
You may just have a quick look at it, maybe it will help you a bit ?
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