Greetings, Any thoughts on why this error occurs on an OpenBSD 3.0
system where I am attempting to setup the gif0 interface as an IP 4over6
tunnel? Thanks, -Darrin
This works fine:
nodeA% ping6 2001:470:1f00:316::1
I am not succeeding in my attempt to:
nodeA% ping 65.218.131.123
Which results in this packet sent from node B (2001:470:1f00:316::1 ) to
node A (2001:470:1f00:316::2):
ICMPv6 - Internet Control Messages Protocol Version 6
ICMP Type: 4 Parameter Problem
Code: 1 Communication With Destination Administratively Prohibited
Header of packet that caused error follows.
IP Version 6 Header - Internet Protocol Datagram
Version: 6
Payload Length: 84
Next Header: 0x04 IP - IP in IP encapsulation
Source Address: 2001:0470:1F00:0316:0000:0000:0000:0002
Destination Address: 2001:0470:1F00:0316:0000:0000:0000:0001
IP - IP in IP encapsulation
IP Data Area: (84 bytes)
Data (Character):
E..T*......Q....A..{........<...............................
!"#$%&'()*+,-./01234567
Data (Hex): 45 00 00 54 2A 01 00 00 FF 01 C2 51 0A 00 00 01 41 DA 83 7B
08 00 BA 92 8A 15 00 EC 3C BB DC EE 00 01 AD BD 08 09 0A 0B 0C 0D 0E 0F
10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27
28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37
Set up the generic interface on node A:
% ifconfig gif0 inet6 tunnel 2001:470:1f00:316::2 2001:470:1f00:316::1
% ifconfig gif0 inet 10.0.0.1 65.218.131.123
% route -n add default 65.218.131.12
This is the configuration for node A:
nodeA% ifconfig -a
lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 33224
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
lo1: flags=8008<LOOPBACK,MULTICAST> mtu 33224
xl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
media: Ethernet autoselect (10baseT half-duplex)
pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33224
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
sl1: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
ppp1: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
tun0: flags=10<POINTOPOINT> mtu 3000
tun1: flags=10<POINTOPOINT> mtu 3000
enc0: flags=0<> mtu 1536
bridge0: flags=0<> mtu 1500
bridge1: flags=0<> mtu 1500
vlan0: flags=0<> mtu 1500
vlan1: flags=0<> mtu 1500
gre0: flags=8010<POINTOPOINT,MULTICAST> mtu 1450
gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
physical address inet6 2001:470:1f00:316::2 -->
2001:470:1f00:316::1
inet6 fe80::204:76ff:fedd:1d27%gif0 -> :: prefixlen 64 scopeid 0x11
inet 10.0.0.1 --> 65.218.131.123 netmask 0xff000000
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
an0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
media: IEEE802.11 autoselect adhoc (DS11 adhoc)
status: active
inet6 2001:470:1f00:316::2 prefixlen 64
inet6 fe80::240:96ff:fe36:368f%an0 prefixlen 64 scopeid 0x15
an1: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
media: IEEE802.11 autoselect adhoc (DS11 adhoc)
status: active
nodeA% netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Mtu
Interface
default 65.218.131.123 UGS 0 0 1280 gif0
65.218.131.123 10.0.0.1 UH 1 2 1280 gif0
127/8 127.0.0.1 UGRS 0 0 33224 lo0
127.0.0.1 127.0.0.1 UH 2 24 33224 lo0
224/4 127.0.0.1 URS 0 0 33224 lo0
Internet6:
Destination Gateway
Flags Refs Use Mtu Interface
::/104 ::1
UGRS 0 0 33224 lo0 =>
::/96 ::1
UGRS 0 0 33224 lo0
::1 ::1
UH 12 0 33224 lo0
::127.0.0.0/104 ::1
UGRS 0 0 33224 lo0
::224.0.0.0/100 ::1
UGRS 0 0 33224 lo0
::255.0.0.0/104 ::1
UGRS 0 0 33224 lo0
::ffff:0.0.0.0/96 ::1
UGRS 0 0 33224 lo0
2001:470:1f00:316::/64 link#21
UC 0 0 1500 an0
2001:470:1f00:316::1 0:40:96:37:bf:ae
UHL 2 986 1500 an0
2001:470:1f00:316::2 ::1
UH 1 0 33224 lo0
2002::/24 ::1
UGRS 0 0 33224 lo0
2002:7f00::/24 ::1
UGRS 0 0 33224 lo0
2002:e000::/20 ::1
UGRS 0 0 33224 lo0
2002:ff00::/24 ::1
UGRS 0 0 33224 lo0
fe80::/10 ::1
UGRS 0 0 33224 lo0
fe80::%lo0/64 fe80::1%lo0
U 0 0 33224 lo0
fe80::%gif0/64 link#17
UC 0 0 1280 gif0
fe80::204:76ff:fedd:1d27%gif0 ::1
UH 0 0 33224 lo0
fe80::%an0/64 link#21
UC 0 0 1500 an0
fec0::/10 ::1
UGRS 0 0 33224 lo0
ff01::/32 ::1
U 0 0 33224 lo0
ff02::%lo0/32 fe80::1%lo0
UC 0 0 33224 lo0
ff02::%gif0/32 link#17
UC 0 0 1280 gif0
ff02::%an0/32 link#21
UC 0 0 1500 an0
Encap:
Source Port Destination Port Proto
SA(Address/Proto/Type/Direction)
This is the configuration for node B:
nodeB% ifconfig -a
lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 33224
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
lo1: flags=8008<LOOPBACK,MULTICAST> mtu 33224
xl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
media: Ethernet autoselect (10baseT half-duplex)
pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33224
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
sl1: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 296
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
ppp1: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
tun0: flags=10<POINTOPOINT> mtu 3000
tun1: flags=10<POINTOPOINT> mtu 3000
enc0: flags=0<> mtu 1536
bridge0: flags=0<> mtu 1500
bridge1: flags=0<> mtu 1500
vlan0: flags=0<> mtu 1500
vlan1: flags=0<> mtu 1500
gre0: flags=8010<POINTOPOINT,MULTICAST> mtu 1450
gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
physical address inet 65.218.131.123 --> 64.71.128.82
inet6 fe80::204:76ff:fedd:20ef%gif0 -> :: prefixlen 64 scopeid 0x11
inet6 2001:470:1f00:ffff::1b1 -> 2001:470:1f00:ffff::1b0
prefixlen 128
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
an0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
media: IEEE802.11 autoselect adhoc (DS11 adhoc)
status: active
inet6 2001:470:1f00:316::1 prefixlen 64
inet6 fe80::240:96ff:fe37:bfae%an0 prefixlen 64 scopeid 0x15
an1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
media: IEEE802.11 autoselect adhoc (DS11 adhoc)
status: active
inet 65.218.131.123 netmask 0xff000000 broadcast 255.255.255.0
inet6 fe80::240:96ff:fe37:82f%an1 prefixlen 64 scopeid 0x16
nodeB% netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Mtu
Interface
default 65.218.131.1 UGS 1 117 1500 an1
65/8 link#22 UC 0 0 1500 an1
65.218.131.1 0:6:28:a3:4a:80 UHL 1 0 1500 an1
127/8 127.0.0.1 UGRS 0 0 33224 lo0
127.0.0.1 127.0.0.1 UH 1 0 33224 lo0
224/4 127.0.0.1 URS 0 0 33224 lo0
Internet6:
Destination Gateway
Flags Refs Use Mtu Interface
::/104 ::1
UGRS 0 0 33224 lo0 =>
::/96 ::1
UGRS 0 0 33224 lo0 =>
default 2001:470:1f00:ffff::1b0
UGS 1 12 1280 gif0
::1 ::1
UH 12 0 33224 lo0
::127.0.0.0/104 ::1
UGRS 0 0 33224 lo0
::224.0.0.0/100 ::1
UGRS 0 0 33224 lo0
::255.0.0.0/104 ::1
UGRS 0 0 33224 lo0
::ffff:0.0.0.0/96 ::1
UGRS 0 0 33224 lo0
2001:470:1f00:316::/64 link#21
UC 0 0 1500 an0
2001:470:1f00:316::1 ::1
UH 0 0 33224 lo0
2001:470:1f00:ffff::1b0 2001:470:1f00:ffff::1b1
UH 1 0 1280 gif0
2001:470:1f00:ffff::1b1 ::1
UH 0 0 33224 lo0
2002::/24 ::1
UGRS 0 0 33224 lo0
2002:7f00::/24 ::1
UGRS 0 0 33224 lo0
2002:e000::/20 ::1
UGRS 0 0 33224 lo0
2002:ff00::/24 ::1
UGRS 0 0 33224 lo0
fe80::/10 ::1
UGRS 0 0 33224 lo0
fe80::%lo0/64 fe80::1%lo0
U 0 0 33224 lo0
fe80::%gif0/64 link#17
UC 0 0 1280 gif0
fe80::204:76ff:fedd:20ef%gif0 ::1
UH 0 0 33224 lo0
fe80::%an0/64 link#21
UC 0 0 1500 an0
fe80::%an1/64 link#22
UC 0 0 1500 an1
fec0::/10 ::1
UGRS 0 0 33224 lo0
ff01::/32 ::1
U 0 0 33224 lo0
ff02::%lo0/32 fe80::1%lo0
UC 0 0 33224 lo0
ff02::%gif0/32 link#17
UC 0 0 1280 gif0
ff02::%an0/32 link#21
UC 0 0 1500 an0
ff02::%an1/32 link#22
UC 0 0 1500 an1
Encap:
Source Port Destination Port Proto
SA(Address/Proto/Type/Direction)
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