Double IPv6 addresses on one machine! Help

BernardLinux · 09-19-2011, 10:23 PM

im running centos 5.5 and i got two ipv6 addresses.

inet6 addr: fe80::20c:xxxx:xxxx:xxxx/64 Scope:Link
inet6 addr: fd00::xxxx:xxxx/64 Scope:Global

the fe80 addrress is the unique address formed by the machine itself using stateless autoconfiguration.

the fd00 address was the address config'd by me manually because i want the apache to listen to this address.

both addresses are shown in the ifconfig, but when i open my windows and run cmd to test ping, i only can ping the fe80 address.

why it cannot ping fd00 address? i do not need fe80 address bacause of the apache issue. i want the unique ipv6 address of my machine to be the fd00 address. Help me.

corp769 · 09-19-2011, 10:39 PM

Hello,

Do you know what devices the IP addresses are allocated to? If not, can you please post the output of the following command, using code tags? Thanks!

Code:

ifconfig -a

Cheers,

Josh

BernardLinux · 09-19-2011, 10:47 PM

Code:

inet6 addr: fe80::20c:xxxx:xxxx:xxxx/64 Scope:Link
inet6 addr: fd00::xxxx:xxxx/64 Scope:Global

BernardLinux · 09-19-2011, 10:51 PM

Well that is what looks like to b my output for

Code:

ifconfig -a

corp769 · 09-19-2011, 11:00 PM

All this means is that the scope for that interface is both local, and global. Have you tried pinging the global scope from outside of your LAN?

BernardLinux · 09-19-2011, 11:04 PM

Wow i never did that actually. But all i know is that windows 7 can only ping to fe80 address, is that correct? im only using Windows seven when i am outside my company's LAN.

need your help to ping my global address.

Code:

 fd00::ac10:2856

Tell me what is the result of that ping. Thanks!

corp769 · 09-19-2011, 11:12 PM

Honestly, I can't man, sorry; I'm at work.

BernardLinux · 09-19-2011, 11:13 PM

u mean the address in unreachable?