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interface has inet6 reference
Hello All:
I've signed up for a Hurricane Electric IPv6 tunnel to mess with IPv6. However when I tried to add the suggested configuration for IPv6 I noticed my interface pcn0 had a inet6 entry: inet6 fe80::a00:27ff:fed3:ff4d%pcn0 prefixlen 64 scopeid 0x1 When I did the install for OpenBSD 4.9 I answered [none] to the IPv6 configuration question. So in order to use the HE tunnel how can I remove that reference for the pcn0 interface? Also why is it in there when I told it not to. I got the same results when using DHCP or a statically assigned IPv4 address. Thank you, Darryl |
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fe80::/10 addresses are IPv6 link local addresses. They are derived from the MAC address (lladdr in the ifconfig output) of the NIC.
See http://en.wikipedia.org/wiki/Link-local_address#IPv6 why they are needed and automatically assigned. In case you want to get rid of it: Code:
$ ifconfig re0 re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:19:db:47:b0:4c priority: 0 groups: egress media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause) status: active inet 192.168.222.20 netmask 0xffffff00 broadcast 192.168.222.255 color=blue]inet6 fe80::219:dbff:fe47:b04c%re0 prefixlen 64 scopeid 0x2[/color] $ sudo ifconfig re0 -inet6 ; ifconfig re0 re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:19:db:47:b0:4c priority: 0 groups: egress media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause) status: active inet 192.168.222.20 netmask 0xffffff00 broadcast 192.168.222.255
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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump |
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