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On 2012-04-20, Joost Roeleveld <joost@××××××××.org> wrote: |
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> On Thursday, April 19, 2012 04:12:35 PM Michael Mol wrote: |
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>> On Thu, Apr 19, 2012 at 4:01 PM, Alex Schuster <wonko@×××××××××.org> wrote: |
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>> > Michael Mol writes: |
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>> >> On Thu, Apr 19, 2012 at 3:40 PM, Alex Schuster <wonko@×××××××××.org> |
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>> >> |
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>> >> wrote: |
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>> >> > New output: |
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>> >> > eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 |
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>> >> > inet 192.168.2.42 netmask 255.255.255.0 broadcast |
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>> >> > 192.168.2.255 inet6 fe80::be5f:f4ff:fe19:ad18 prefixlen 64 scopeid |
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>> >> > 0x20<link> |
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>> >> > |
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>> >> > ether bc:5f:f4:19:ad:18 txqueuelen 1000 (Ethernet) |
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>> >> |
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>> >> There it is. |
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>> > |
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>> > Wow. Now I feel really stupid. Because I am. I have no idea why I have |
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>> > overlooked this. |
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>> > |
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>> > Sorry for the noise! |
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>> |
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>> I didn't see it right away, either. I found it by noticing your MAC in |
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>> your old output, and searched for a substring of it in your new |
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>> output. |
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>> |
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>> Incidentally, you can derive it from your IPv6 LL address, but that's |
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>> a bit of a roundabout way, and may not work if you've disabled IPv6. |
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> |
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> How do you derive it? |
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> I don't see the mac-address in the inet6 address. |
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|
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$ ip addr show dev eth1 |
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3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast |
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state UP qlen 1000 |
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link/ether 00:16:17:84:a7:b3 brd ff:ff:ff:ff:ff:ff |
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inet 10.0.0.1/8 brd 10.255.255.255 scope global eth1 |
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inet 192.168.250.1/24 brd 192.168.250.255 scope global eth1 |
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inet 169.254.1.1/16 brd 169.254.255.255 scope global eth1 |
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inet6 fe80::216:17ff:fe84:a7b3/64 scope link |
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valid_lft forever preferred_lft forever |
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|
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|
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fe80::0216:17ff:fe84:a7b3 |
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|
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0216 17 84 a7b3 |
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xor 0200 00 00 0000 |
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------------------- |
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0016 17 84 a7b3 |
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|
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00:16:17:84:a7:b3 |
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|
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And that's the interfaces MAC address. |
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|
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See RFC2464 Sections 4 and 5 |
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|
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The tricky part is that you invert bit 1 of the first byte of the MAC |
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address. |
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|
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-- |
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Grant Edwards grant.b.edwards Yow! Someone in DAYTON, |
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at Ohio is selling USED |
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gmail.com CARPETS to a SERBO-CROATIAN |
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