[opensuse] Why no IPv6 link local address?
My firewall is an old computer running openSUSE 11.3 and I have IPv6 running on it. However, the NIC facing my cable modem does not show an IPv6 link local address, which every NIC is supposed to have, if IPv6 is enabled. The NIC facing my LAN has both link local and public unicast addresses. I had considered that something in my cable modem might be inhibiting it, but when I plug my notebook computer directly into the modem, it has a link local address. I tried booting from a live 12.1 CD and had link local addresses on both LAN & WAN interfaces, so there's something in openSUSE 11.3, as installed, that's disabling it. I tried turning off the firewall, but that also didn't make any difference. Any idea why that one NIC doesn't have a link local address? tnx jk -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Mon, Jan 2, 2012 at 3:35 AM, James Knott
My firewall is an old computer running openSUSE 11.3 and I have IPv6 running on it. However, the NIC facing my cable modem does not show an IPv6 link local address, which every NIC is supposed to have, if IPv6 is enabled. The NIC facing my LAN has both link local and public unicast addresses. I had considered that something in my cable modem might be inhibiting it, but when I plug my notebook computer directly into the modem, it has a link local address.
IMO, what you are saying is that there is a problem with the modem and IPV6. I donot think of a hard and fast rule to what you are saying.
I tried booting from a live 12.1 CD and had link local addresses on both LAN & WAN interfaces, so there's something in openSUSE 11.3, as installed, that's disabling it. I tried turning off the firewall, but that also didn't make any difference.
Any idea why that one NIC doesn't have a link local address?
http://tldp.org/HOWTO/html_single/Linux+IPv6-HOWTO/#AEN811
tnx jk
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Sujit Karatparambil wrote:
On Mon, Jan 2, 2012 at 3:35 AM, James Knott
wrote: My firewall is an old computer running openSUSE 11.3 and I have IPv6 running on it. However, the NIC facing my cable modem does not show an IPv6 link local address, which every NIC is supposed to have, if IPv6 is enabled. The NIC facing my LAN has both link local and public unicast addresses. I had considered that something in my cable modem might be inhibiting it, but when I plug my notebook computer directly into the modem, it has a link local address. IMO, what you are saying is that there is a problem with the modem and IPV6. I donot think of a hard and fast rule to what you are saying.
No, that's not what I'm saying. When IPv6 is enabled, every NIC should have a link local address, regardless of what it's connected to. When I boot that same computer with a Live CD, that NIC will have a link local address. Also, when I connect my notebook directly to the modem, it will also have one. So, there's nothing wrong with the modem or the computer hardware. There's something within 11.3 that's killing that link local address. There's a line
I tried booting from a live 12.1 CD and had link local addresses on both LAN & WAN interfaces, so there's something in openSUSE 11.3, as installed, that's disabling it. I tried turning off the firewall, but that also didn't make any difference.
Any idea why that one NIC doesn't have a link local address? http://tldp.org/HOWTO/html_single/Linux+IPv6-HOWTO/#AEN811
I can manually add an IPv6 address in the link local range (starting with "FE80") and ping it. Also, there's a section in /etc/sysconfig/network/config that's supposed to enable link local addresses for all NICs: ## Type: string ## Default: "eth*[0-9]|tr*[0-9]|wlan[0-9]|ath[0-9]" # # Automatically add a linklocal route to the matching interfaces. # This string is used in a bash "case" statement, so it may contain # '*', '[', ']' and '|' meta-characters. # LINKLOCAL_INTERFACES="eth*[0-9]|tr*[0-9]|wlan[0-9]|ath[0-9]" -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (2)
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James Knott
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Sujit Karatparambil