[Wylug-discuss] ipv4/6 broker and adsl supplier

[Kevin Barrass]

Hi

I've tried both the BT and UKERNA tunnel broker to my Cisco router at
home using a /128 for testing and I cant get either working. Using the
BT stats page for the tunnel I can see my traffic hitting there tunnel
interface but not the other way around as below shows.

Does anyone know if Orange Broadband blocks this traffic as far as I
know its IP protocol 41.

The access list on my dialer/ADSL interface is allowing IP PROTO 41 from
213.121.24.85 so am damn sure its not my router that's the problem
possibly the crud from me to the Tunnel Broker ;0)

Any feedback appreciated.

Kev


################ from BT ##################

Here are the statistics provided by the router for this tunnel... 


  show int tun 72544
Tunnel72544 is up, line protocol is up 
  Hardware is Tunnel
  Description: To *.*.*.*
  MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive not set
  Tunnel source 213.121.24.85 (GigabitEthernet0/1), destination *.*.*.*
  Tunnel protocol/transport IPv6/IP
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Last input 00:00:14, output 00:09:18, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     20 packets input, 2176 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     10 packets output, 936 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out


############# from my router #########################


mini-me#sh int tu1
Tunnel1 is up, line protocol is up
  Hardware is Tunnel
  Description: BTexact Technologies tunnel broker (tb.ipv6.btexact.com)
  MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive not set
  Tunnel source *.*.*.*, destination 213.121.24.85
  Tunnel protocol/transport IPv6/IP
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Last input never, output 00:00:10, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     20 packets output, 1776 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out


-----Original Message-----
From: wylug-discuss-bounces at wylug.org.uk
[mailto:wylug-discuss-bounces at wylug.org.uk] On Behalf Of John Leach
Sent: 18 April 2007 12:51
To: wylug-discuss at wylug.org.uk
Subject: [Wylug-discuss] ipv4/6 broker and adsl supplier

Hi all,

following up Jim's talk, you can get a free ipv4 tunnel to the ipv6
network for playing with from home via BT: https://tb.ipv6.btexact.com/

It's free to sign up and use, and if you specify that you're using
Linux, they even e-mail you out pre-configured shell scripts.


Also, Black Cat Networks are one adsl supplier I know to offer direct
(non tunnelled) ipv6 connectivity:

http://www.blackcatnetworks.co.uk/services/adsl

I'm sure others exist and more will start cropping up.  I don't use
Black Cat for adsl myself, but do for some other services and they are
lovely.  I'm not affiliated with them in any way, although I do live
with some black cats.

As Jim said, before connecting up to the ipv6 network I'd recommend
brushing up on your ipv6 Netfilter skills (though with such a large
address space, at least you're far less likely to be randomly scanned by
script kiddies).

John.

--
http://johnleach.co.uk


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