Re: About IPv6 Link-Local Address(CentOS5)

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> First off, I assume you can ping your link-local address:
>
>    ping6 -I eth1 fe80::a00:27ff:fe03:5b8a
>
> Second, you never mentioned how eth1 was assigned its IPv6 address.
> Given that you've tried to embed an IPv4 address within an IPv6 address
> (which is normally done with a 0:0:0:0:0: prefix), I'd guess you did it
> manually. If so, with what tools?

Thanks for the response.
I'm sorry when it was misguided answer.

The setting of the IP address reaches by manual operation.

# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
BOOTPROTO="none"
ONBOOT=yes
HWADDR=08:00:27:83:74:54
IPADDR=192.168.11.8
NETMASK=255.255.255.0
IPV6INIT=yes
IPV6ADDR=2000:8000:12:6:192:168:11:8/64
IPV6_DEFAULTGW=2000:7000:12:6::1


■ link up
# ethtool eth1
Settings for eth1:
~
        Link detected: yes

# ifdown eth1
# ifup eth1
# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 08:00:27:83:74:54
          inet addr:192.168.11.8  Bcast:192.168.11.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe83:7454/64 Scope:Link      ←○
          inet6 addr: 2000:8000:12:6:192:168:11:8/64 Scope:Global


■ link down
# ethtool eth1
Settings for eth1:
~
        Link detected: no

# ifdown eth1
# ifup eth1
# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 08:00:27:83:74:54
          inet addr:192.168.11.8  Bcast:192.168.11.255  Mask:255.255.255.0
          inet6 addr: 2000:8000:12:6:192:168:11:8/64 Scope:Global


Missing fe80::a00:27ff:fe83:7454/64.


On 2015/11/14 1:19, Paul Heinlein wrote:
On Fri, 13 Nov 2015, 米山陽介 wrote:

 Try

    ping6 -I eth1 2000:8000:12:6:192:168:11:8

Thanks for the response.

I tried.
However, It did not resolve....

# ping6 -I eth1 2000:8000:12:6:192:168:11:8
PING 2000:8000:12:6:192:168:11:8(2000:8000:12:6:192:168:11:8) from
fe80::a00:27ff:fe03:5b8a eth1: 56 data bytes

First off, I assume you can ping your link-local address:

   ping6 -I eth1 fe80::a00:27ff:fe03:5b8a

Second, you never mentioned how eth1 was assigned its IPv6 address.
Given that you've tried to embed an IPv4 address within an IPv6 address
(which is normally done with a 0:0:0:0:0: prefix), I'd guess you did it
manually. If so, with what tools?


On 2015/11/13 2:22, Paul Heinlein wrote:
 On Thu, 12 Nov 2015, 米山陽介 wrote:

>  Hello
> >  Because I did not send , and then retransmitted.
> >  I am using the CentOS5.7.
>  In a state where the link down, I did a ping to the IPv4 and IPv6.
>  IPv4 succeeds in ping. but, IPv6 is ping fails.
>  Once confirmed by ifconfig, it did not have a Link-Local Address.
>  At link down, Is the Link-Local Address not set?
>  Leave the link down, Is there a way to avoid this?
> >  # ethtool eth1
>  Settings for eth1:
>  ~
>         Link detected: no
> >  # ifconfig eth1
>  eth1      Link encap:Ethernet  HWaddr 08:00:27:83:74:54
>           inet addr:192.168.11.8  Bcast:192.168.11.255 >
Mask:255.255.255.0
>           inet6 addr: 2000:8000:12:6:192:168:11:8/64 Scope:Global
>           UP BROADCAST MULTICAST  MTU:1500  Metric:1
>           RX packets:786 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:289 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:81093 (79.1 KiB)  TX bytes:46507 (45.4 KiB)
> >  # ping 192.168.11.8
>  PING 192.168.11.8 (192.168.11.8) 56(84) bytes of data.
>  64 bytes from 192.168.11.8: icmp_seq=1 ttl=64 time=0.033 ms
>  64 bytes from 192.168.11.8: icmp_seq=2 ttl=64 time=0.019 ms
>  ~
> >  # ping6 2000:8000:12:6:192:168:11:8
>  PING 2000:8000:12:6:192:168:11:8(2000:8000:12:6:192:168:11:8) 56 data
>  bytes

 Try

    ping6 -I eth1 2000:8000:12:6:192:168:11:8



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