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Author Topic: Address Unreachable  (Read 4120 times)

uinpusdatin1

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Address Unreachable
« on: August 03, 2011, 09:42:48 AM »

Hi,

i've problems with while tunnel ipv6 add, im running centos

i conf /etc/sysconfig/network-scripts/init.ipv6-global

auto he-ipv6
iface he-ipv6 inet6 v4tunnel
        endpoint 216.218.221.42
        address 2001:470:35:270::2
        netmask 64
        local 202.47.88.76
        gateway 2001:470:35:270::1
        ttl 25

and this is all my net add:

[root@ip6 ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:26:18:EE:C6:4F 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:28 Base address:0xe000

eth1      Link encap:Ethernet  HWaddr 00:24:01:D2:2B:D1 
          inet addr:202.47.88.67  Bcast:202.47.88.79  Mask:255.255.255.240
          inet6 addr: fe80::224:1ff:fed2:2bd1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:137600 errors:0 dropped:0 overruns:0 frame:0
          TX packets:58928 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:82877432 (79.0 MiB)  TX bytes:6538328 (6.2 MiB)
          Interrupt:20 Base address:0x8c00

he-ipv6   Link encap:IPv6-in-IPv4 
          inet6 addr: 2001:470:35:270::2/64 Scope:Global
          inet6 addr: fe80::ca2f:584c/128 Scope:Link
          UP POINTOPOINT RUNNING NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:1367 dropped:0 overruns:0 carrier:1367
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1526 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1526 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:215572 (210.5 KiB)  TX bytes:215572 (210.5 KiB)

the output is:

ping6 ipv6.google.com
PING ipv6.google.com(2404:6800:800b::67) 56 data bytes
From 2001:470:35:270::2 icmp_seq=1 Destination unreachable: Address unreachable
From 2001:470:35:270::2 icmp_seq=2 Destination unreachable: Address unreachable

thanks..
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cholzhauer

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Re: Address Unreachable
« Reply #1 on: August 03, 2011, 09:45:40 AM »

I replied to your other post...did you see that?
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snarked

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Re: Address Unreachable
« Reply #2 on: August 03, 2011, 12:07:48 PM »

...And your routing table?
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uinpusdatin1

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Re: Address Unreachable
« Reply #3 on: August 04, 2011, 01:42:38 AM »

yes, i saw it...
there's no problems with eth1

#ip tunnel add he-ipv6 mode sit remote 216.218.221.42 local 202.47.88.76 ttl 255
#ip link set he-ipv6 up
#ip addr add 2001:470:35:270::2/64 dev he-ipv6
#ip route add :0 dev he-ipv6
#ip -f inet6 addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 fe80::224:1ff:fed2:2bd1/64 scope link
       valid_lft forever preferred_lft forever
5: he-ipv6: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1480
    inet6 2001:470:35:270::2/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::ca2f:584c/128 scope link
       valid_lft forever preferred_lft forever

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cholzhauer

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Re: Address Unreachable
« Reply #4 on: August 04, 2011, 04:57:48 AM »

Well your tunnel is never going to work.

You have 202.47.88.67 on eth1 and in your commands you're using 202.47.88.76...those need to match
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uinpusdatin1

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Re: Address Unreachable
« Reply #5 on: August 09, 2011, 01:04:15 AM »

hi, i solved my problems, i need to disable the firewall.

Now am going to configure DHCPv6, here is my conf:

option domain-name-servers 2001:470:35:270::1;
option domain-name        "ipv6.pusdatin.com";

interface eth1 {
        address-pool-pool1 3600;
};

pool pool1 {
   range 2001:470:35:270::1000 to 2001:470:35:270::2000;
};

then start it:
/etc/init.d/dhcpd6 start
Starting dhcpd (DHCPv6):                                   [FAILED]

is the configuration correct? what shud i do?
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samnew

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Re: Address Unreachable
« Reply #6 on: September 09, 2011, 08:00:58 PM »

I have search the forum about "Destination unreachable: Address unreachable",and do someone advise,but still have Destination unreachable: Address unreachable.

MyIPv6 Tunnel Endpoints
Server IPv4 Address:72.52.104.74
Server IPv6 Address:2001:470:1f04:1717::1/64
Client IPv4 Address:115.201.195.2
Client IPv6 Address:2001:470:1f04:1717::2/64
I config the tunnelbroker use ip route follow  he.net configuration

I use Wifi to enter the IPV4 and in the Intranet ,I have already turn the firewall off

here is my ipv6 addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
4: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 fe80::21b:77ff:fe81:b476/64 scope link
       valid_lft forever preferred_lft forever
5: he-ipv6: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1480
    inet6 2001:470:1f04:1717::2/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::73c9:c302/128 scope link
       valid_lft forever preferred_lft forever


any one could help ?
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cholzhauer

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Re: Address Unreachable
« Reply #7 on: September 11, 2011, 09:07:52 AM »

Are you behind a nat? Is your router passing protocol 41?  What commands did you use to start the tunnel?
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k1mu

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Re: Address Unreachable
« Reply #8 on: September 12, 2011, 06:09:22 AM »


interface eth1 {
        address-pool-pool1 3600;
};

pool pool1 {
   range 2001:470:35:270::1000 to 2001:470:35:270::2000;
};
That's certainly wrong (address-pool-pool1 probably should be address-pool pool1), and not at all consistent with the examples.

What your dhcpd6.conf file should look like is something like

subnet6 2001:470:35:270::/64 {
        range6 2001:470:35:270::1000 2001:470:35:270::2000;
        option dhcp6.name-servers 2001:470:35:270::1;
        option dhcp6.domain-search "ipv6.pusdatin.com";
}

No guarantees, but this should work.
However, please verify that 2001:470:35:270::/64 is your routed IPv6 (i.e. not the same network that hosts the tunnel between you and HE.)
It seems to me that you're using 2001:470:35:270:: addresses on your tunnel. You shouldn't be using DHCP for the tunnel network, use it on your routed network.
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