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[SOLVED] Host with static IPv6 also gets IPv6 from RA

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freke
Tux's lil' helper

Tux's lil' helper

Joined: 23 Jan 2003
Posts: 98

Posted: Sat Feb 04, 2012 9:05 pm Post subject: [SOLVED] Host with static IPv6 also gets IPv6 from RA

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I've got a couple of hosts (mail-server and dns-server) whith static IPv6s.
They do - however - also get an IPv6 from my address-space from my firewall.

Code:

eth0 Link encap:Ethernet HWaddr 00:24:81:59:98:22
inet addr:10.0.0.251 Bcast:10.0.1.255 Mask:255.255.254.0
inet6 addr: 2001:470:28:4a6::4/64 Scope:Global
inet6 addr: 2001:470:28:4a6:224:81ff:fe59:9822/64 Scope:Global

They're supposed to get the second IPv6 (which is based on the MAC)?

Last edited by freke on Sun Feb 05, 2012 8:07 am; edited 1 time in total

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truc
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Joined: 25 Jul 2005
Posts: 3078

Posted: Sat Feb 04, 2012 10:55 pm Post subject:

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yes unless you explicitly disable autoconf (or do not accept ra)

Code:

net.ipv6.conf.all.accept_ra
net.ipv6.conf.all.autoconf

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gentoo_ram
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Joined: 25 Oct 2007
Posts: 369
Location: San Diego, California USA

Posted: Sun Feb 05, 2012 1:49 am Post subject:

Don't worry. It's normal in IPv6 to have multiple addresses.

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freke
Tux's lil' helper

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Joined: 23 Jan 2003
Posts: 98

Posted: Sun Feb 05, 2012 8:07 am Post subject:

Thanks - I'll stop worrying and assume my network is fine

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