[CentOS] 1st static IPv6 address

Robert Moskowitz rgm at htt-consult.com
Thu Jul 10 16:18:31 UTC 2008

My ISP assigned prefix is: 2607:F4B8:3::/48

So I am building my internal IPv6 firewall/router/ etc. 

I want to have a static IPv6 address on its eth0 so that I can create 
static v6 routes to it from the gateway.  I add the following lines to 


if-up eth0 gets the error:

Error: an inet prefix is expected rather than "2607:F4B8:3:1/64".
ERROR    : [ipv6_add_addr_on_device] Cannot add IPv6 address 
'2607:F4B8:3:1/64' on dev 'eth0'

What is missing? 
Why is it not building an address of 2607:F4B8:3:1:0:40:F405:A8F1 ?

I am reading:  
file:///usr/share/doc/initscripts-8.45.19.EL/sysconfig.txt for my 
'inspiration'.  Other sources are welcome...

OH, /etc/sysconfig/network does have the line:


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