Re: [ipv6] Odd behaviour...

8 messages, 3 authors, 2008-05-29 · open the first message on its own page

Re: [ipv6] Odd behaviour...

From: Andrew Morton <akpm@linux-foundation.org>
Date: 2008-05-29 07:27:52

On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)

What kernel version are you running?

Re: [ipv6] Odd behaviour...

From: Andrew Morton <akpm@linux-foundation.org>
Date: 2008-05-29 08:52:38

On Thu, 29 May 2008 10:41:57 +0200 pomac@vapor.com wrote:
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
Yeah.  linux-net _might_ be a hive of activity, dunno.  I haven't been
there in years.  Perhaps it should be retired.
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
It would be interesting if you know of any earlier kernel version which
works OK?

Re: [ipv6] Odd behaviour...

From: <hidden>
Date: 2008-05-29 09:01:08

On Thu, May 29, 2008 at 01:51:31AM -0700, Andrew Morton wrote:
On Thu, 29 May 2008 10:41:57 +0200 pomac@vapor.com wrote:
quoted
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
Yeah.  linux-net _might_ be a hive of activity, dunno.  I haven't been
there in years.  Perhaps it should be retired.
Heh, i'll look in the archives... =)
quoted
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
It would be interesting if you know of any earlier kernel version which
works OK?
Well, for me it was ages since i used ipv6... So i can't really help. I
was more hoping for someone in the same position or someone who'd seen
something simular and solved it.
From what i gather, i have done nothing wrong and a forward shouldn't
time out. Ie, if it works it should keep working.

It would be really interesting to see what the other end of a ipv6
tunnel sees when it pings, but i don't have the means to test that
currently.

Re: [ipv6] Odd behaviour...

From: <hidden>
Date: 2008-05-29 09:04:25

On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?

Re: [ipv6] Odd behaviour...

From: YOSHIFUJI Hideaki / 吉藤英明 <hidden>
Date: 2008-05-29 09:28:31

In article [off-list ref] (at Thu, 29 May 2008 10:41:57 +0200), pomac@vapor.com says:
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
How do you assign the address?

--yoshfuji

Re: [ipv6] Odd behaviour...

From: <hidden>
Date: 2008-05-29 10:08:39

On Thu, May 29, 2008 at 06:28:53PM +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote:
In article [off-list ref] (at Thu, 29 May 2008 10:41:57 +0200), pomac@vapor.com says:
quoted
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
How do you assign the address?
On the router/fw there is a sit tunnel thats started with 'ip'.

The clients get their addresses by radvd which only uses a local
interface on the router/fw...
--yoshfuji

Re: [ipv6] Odd behaviour...

From: YOSHIFUJI Hideaki / 吉藤英明 <hidden>
Date: 2008-05-29 10:45:55

In article [off-list ref] (at Thu, 29 May 2008 12:08:22 +0200), pomac@vapor.com says:
On Thu, May 29, 2008 at 06:28:53PM +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote:
quoted
In article [off-list ref] (at Thu, 29 May 2008 10:41:57 +0200), pomac@vapor.com says:
quoted
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
How do you assign the address?
On the router/fw there is a sit tunnel thats started with 'ip'.

The clients get their addresses by radvd which only uses a local
interface on the router/fw...
Please draw w a network topology figure.

--yoshfuji

Re: [ipv6] Odd behaviour...

From: <hidden>
Date: 2008-05-29 12:20:35

On Thu, May 29, 2008 at 07:46:16PM +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote:
In article [off-list ref] (at Thu, 29 May 2008 12:08:22 +0200), pomac@vapor.com says:
quoted
On Thu, May 29, 2008 at 06:28:53PM +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote:
quoted
In article [off-list ref] (at Thu, 29 May 2008 10:41:57 +0200), pomac@vapor.com says:
quoted
On Thu, May 29, 2008 at 12:27:29AM -0700, Andrew Morton wrote:
quoted
On Tue, 27 May 2008 00:58:30 +0200 Ian Kumlien [off-list ref] wrote:
quoted
Hi, 

I just recently acquired a new ipv6 tunnel since my two previous brokers
has gone out of business. I now use hurricane electrics tunnel since i
have really good ping times to it's node in Amsterdam.

Anyways, i have setup a local network tunnel and enabled forwarding.

After about 300 seconds, it all stops working. I have to disable and
re-enable it on the firewall/router to get it working again.

tcpdump shows the router/firewall doing odd things like:
(i renamed my host to piv6)

00:48:14.294173 IP6 piv6 > igloo.stacken.kth.se: ICMP6, echo request,
seq 321, length 64

00:48:14.341288 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64

00:48:14.341317 IP6 fe80::55e4:1b90 > igloo.stacken.kth.se: ICMP6,
redirect, piv6 to piv6, length 160

00:48:14.341332 IP6 igloo.stacken.kth.se > piv6: ICMP6, echo reply, seq
321, length 64
---

fe80::55e4::1b90 is the local ip of the ipv6 tunnel.
(note: the packet never arrives at it's destination)

Any ideas of what could be going wrong?			
(cc netdev - afaik linux-net is kind of dead)
Thanks, i knew i missed something, -net was the one that was already in
my email client so... =)
quoted
What kernel version are you running?
The router/fw is running 2.6.25.1, the client is running 2.6.25.4

Any additional information i should provide?
How do you assign the address?
On the router/fw there is a sit tunnel thats started with 'ip'.

The clients get their addresses by radvd which only uses a local
interface on the router/fw...
Please draw w a network topology figure.
It's very basic... 

client -> router/fw -tap-tunnel-> -hurricane-electric-> internet.

(the firewall/router is my normal ipv4 firewall but for ipv6 it acts as
a router, thus the "router/fw" or "firewall/router".

but, router/fw -tap-tunnel-> -hurricane->electric-> internet. always
works, and outgoing communications always works. This is only a problem
for incoming communications.
--yoshfuji
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