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AM1808 using EZDSK - how to assign static IPv6 address

TommyG
Genius 13045 points
Other Parts Discussed in Thread: AM1808

How can I assign static IPV6 address for AM1808 EVM running EZDSK v5.01?  I see how to do this for IPv4 IP address, but not IPv6.  Can someone help out here?

Thanks.

  • 0
    Prodigy 175 points

    If you are ok doing the ip configuration once you are up and running Linux, than you should be able to do it with the /etc/network/interfaces file as described at http://www.ghacks.net/2009/07/08/assign-ipv6-addresses-in-linux/. I am not sure there is a way to use a static IPv6 address from the bootargs value from U-Boot, the ip setting there seems to fall under NFS (the ip= value mentioned at http://www.kernel.org/doc/Documentation/kernel-parameters.txt points to  http://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt) which has no mention of IPV6 support in the kernel doc. On the other hand if you enable IPv6 in the kernel you should be able to configure a static IP from within Linux as mentioned above, I am just not sure how to do it with NFS off hand. 

  • 0 in reply to Bernie Thompson
    Intellectual 450 points

    Doctoring of the interfaces file does not seem to do the trick for me...and since this thread was never updated to "solved", I am curious as to what was the resolution?  Ideally I would like to set a user defined parameter in u-boot with the IPv6 address and have a kernel module (somewhere) force the desired IP Address.  Anyone able to shed more light on this?  When I hook up my custom board to an IPv6 capabale switch that has DHCP turned off...I still get an IPv6 address assigned. (not sure how).  If I manually run the command: ipconfig eth0 add <IPv6Address>/64   I can see a new Global scope IPv6 address...but how do I do this programmatically?  I also do not want to have to have the end user modify the RamDisk everytime they want to change the IP Address (if possible).

  • 0 in reply to Dan Tesone
    Intellectual 450 points

    OK - apparently I must have misconfigured the interfaces during my first several attempts as after trying it again...it now seems to work.  So at least I have "a" method for statically assigning an IPv6 address (although not the preferred method).  I would much rather not have to modify and re-flash the RamDisk everytime the customer wants to change the IP address. So my question now stands as - "Has anyone performed an IPv6 static assignment whereby reflashing the RamDisk is not necessary?"
    Working example excerpt from interfaces file:

    auto eth0
    iface eth0 inet6 static
              address 2002:a00:162:0:20c:29ff:fe57:d464
              netmask 64
              gateway 2002:a00:162:0:0:0:0:1