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IPV6 自由談

https://forums.gentoo.tw/viewtopic.php?t=44732

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IPV6 自由談

Posted: Sat Jul 10, 2010 10:16 am
by dxcdxc
話說forum.gentoo.tw 也改成IPv6的了，不知道目前是在哪裡的機房呢？

Re: IPV6 自由談

Posted: Mon Jul 12, 2010 11:36 am
by paar
由於去年度底從教育部推下整個 TANet 要上到 IPv6 與 v4 的 dual stack，
本站目前位於高雄市的教育網路內，(請看右上角 :104.gif: )
所以把它也加上了。

Re: IPV6 自由談

Posted: Fri Oct 22, 2010 8:21 am
by orscar
那Gentoo. ipv6網路要如何設定呢... :)

Re: IPV6 自由談

Posted: Fri Oct 22, 2010 10:13 am
by paar
/etc/conf.d/net.example:

Code: Select all

...
# You can also use IPv6 addresses
# (you should always specify a prefix length with IPv6 here)
#config_eth0=(
#       "192.168.0.2/24"
#       "4321:0:1:2:3:4:567:89ab/64"
#       "4321:0:1:2:3:4:567:89ac/64"
#)
...
# Here's how to do routing if you need it
#routes_eth0=(
#       "default via 192.168.0.1"               # IPv4 default route
#       "10.0.0.0/8 via 192.168.0.1"            # IPv4 subnet route
#       "::/0"                                  # IPv6 unicast
#)
...
可能是我這邊的 core route 是 ipv6 autoconfig ready 了，
真的照以上的設定法就 work 了

Re: IPV6 自由談

Posted: Fri Oct 22, 2010 8:36 pm
by orscar
設定成ipv6 autoconfig ready 是ok的.
但ipv6設固定會有兩個ipv6的ip..
eth0 Link encap:Ethernet HWaddr 00:04:61:47:12:f3
inet addr:163.32.xxx.17 Bcast:163.32.xxx.255 Mask:255.255.255.0
inet6 addr: 2001:288:xxxx:1:204:61ff:fe47:12f3/64 Scope:Global
inet6 addr: fe80::204:61ff:fe47:12f3/64 Scope:Link
inet6 addr: 2001:288:xxxx:1::17/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3290194 errors:0 dropped:0 overruns:0 frame:0
TX packets:4971602 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:842227197 (803.2 MiB) TX bytes:2392780650 (2.2 GiB)
Interrupt:11 Base address:0xa000
這樣ipv6網路就不通了...

Re: IPV6 自由談

Posted: Sat Oct 23, 2010 8:36 pm
by paar
同一個介面本來就可以多個IP的，
可以多個v6 IP 也可以多個v4 IP，
在這台 forums 的環境是有兩個 v6 IP 同時運行 OK 的，
它的 v6 default gateway 是 fe80 開頭的同網段，
您的情形可能是 routing 有問題，
用

Code: Select all

# ip -6 route
或
# route -6
查看是否正確

Re: IPV6 自由談

Posted: Sun Oct 24, 2010 11:33 am
by orscar
這是查看的內容:

Code: Select all

 ip -6 route
2001:288:82xx:1::/64 dev eth0  proto kernel  metric 256  expires 2147142sec mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev eth0  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
default dev eth0  metric 2  mtu 1500 advmss 1440 hoplimit 0
default via fe80::217:94ff:fe2a:6768 dev eth0  proto kernel  metric 1024  expires 1785sec mtu 1500 advmss 1440 hoplimit 64
default via fe80::209:fff:fe89:33f4 dev eth0  proto kernel  metric 1024  expires 1786sec mtu 1500 advmss 1440 hoplimit 0

route -6
Kernel IPv6 routing table
Destination                    Next Hop                   Flag Met Ref Use If
2001:288:82xx:1::/64           ::                         Ue   256 0     1 eth0
fe80::/64                      ::                         U    256 0     0 eth0
::/0                           ::                         U    2   0     0 eth0
::/0                           fe80::217:94ff:fe2a:6768   UGDAe 1024 0     0 eth0
::/0                           fe80::209:fff:fe89:33f4    UGDAe 1024 0     0 eth0
::/0                           ::                         !n   -1  1  3287 lo
::1/128                        ::                         Un   0   1   160 lo
2001:288:82xx:1::17/128        ::                         Un   0   1     0 lo
2001:288:82xx:1:204:61ff:fe47:12f3/128 ::                         Un   0   1     0 lo
fe80::204:61ff:fe47:12f3/128   ::                         Un   0   1     1 lo
ff00::/8                       ::                         U    256 0     0 eth0
::/0                           ::                         !n   -1  1  3287 lo

ping6   www.ipv6.hinet.net
PING www.ipv6.hinet.net(2001:b000::2) 56 data bytes
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=2 Destination unreachable: Address unreachable
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=3 Destination unreachable: Address unreachable
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=4 Destination unreachable: Address unreachable
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=6 Destination unreachable: Address unreachable
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=7 Destination unreachable: Address unreachable
From 2001:288:82xx:1:204:61ff:fe47:12f3 icmp_seq=8 Destination unreachable: Address unreachable

Re: IPV6 自由談

Posted: Sun Oct 24, 2010 6:00 pm
by paar

Code: Select all

default via fe80::217:94ff:fe2a:6768 dev eth0  proto kernel  metric 1024  expires 1785sec mtu 1500 advmss 1440 hoplimit 64
default via fe80::209:fff:fe89:33f4 dev eth0  proto kernel  metric 1024  expires 1786sec mtu 1500 advmss 1440 hoplimit 0

::/0                           fe80::217:94ff:fe2a:6768   UGDAe 1024 0     0 eth0
::/0                           fe80::209:fff:fe89:33f4    UGDAe 1024 0     0 eth0
有兩個 v6 的 default gateway 這是錯的
看看 autoconfig 出來的唯一個 v6 IP 與 v6 default gateway 是什麼，
另一個就是錯的
至於錯的的那個 v6 default gateway 怎麼來的，
我也看不出來...

Re: IPV6 自由談

Posted: Tue Oct 26, 2010 9:47 am
by orscar
我在

Code: Select all

routes_eth0=( 
       "default via 163.32.xxx.254"
       "2001:288:xxxx:1:217:94ff:fe2a:6768"
這裏多設定"::/0" 拿掉就可以通了.
另外我用這台當route時

Code: Select all

ip -6 route
2001:288:xxxx:1:217:94ff:fe2a:6768 dev eth0  metric 2  mtu 1500 advmss 1440 hoplimit 0
2001:288:xxxx:1::/64 dev eth0  proto kernel  metric 256  expires 2147095sec mtu 1500 advmss 1440 hoplimit 0
2001:288:xxxx:3::/64 dev eth1  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev eth1  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev eth0  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
default via fe80::217:94ff:fe2a:6768 dev eth0  proto kernel  metric 1024  expires 1738sec mtu 1500 advmss 14                                                                                                                                 40 hoplimit 64
default via fe80::209:fff:fe89:33f4 dev eth0  proto kernel  metric 1024  expires 1739sec mtu 1500 advmss 144
網路是通的..

只要啟動radvd

Code: Select all

ip -6 route
2001:288:xxxx:1:217:94ff:fe2a:6768 dev eth0  metric 2  mtu 1500 advmss 1440 hoplimit 0
2001:288:xxxx:1::/64 dev eth0  proto kernel  metric 256  expires 2147052sec mtu 1500 advmss 1440 hoplimit 0
2001:288:xxxx:3::/64 dev eth1  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev eth1  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
fe80::/64 dev eth0  proto kernel  metric 256  mtu 1500 advmss 1440 hoplimit 0
網路就不通
我是參考下面網頁做的.
http://blog.richliu.com/2007/05/31/489/
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