199333 - IPv6: display Unreachable (Administratively prohibited) if we do not failover

Status: RESOLVED DUPLICATE of bug 621558

(Core :: Networking, defect)

Description

[Daniel Mueller]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030322
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030322

I tried to connect to www.crypto-publish.org via IPv6. But it seems that they
a.) block connection-requests from my subnet (I'm using freenet6 ;)
b.) or the ipv6-apache is down/not running.

danm@torax:~$ host -t aaaa www.crypto-publish.org 
www.crypto-publish.org is an alias for isrv4.isc.org.
isrv4.isc.org has AAAA address 2001:4f8:3:bb:a00:2bff:fec3:b07e
danm@torax:~$ host -t a www.crypto-publish.org 
www.crypto-publish.org is an alias for isrv4.isc.org.
isrv4.isc.org has address 204.152.187.11

The IPv4-Link is up and usable. I think Mozilla should fallback into IPv4-Mode.

Reproducible: Always

Steps to Reproduce:
1. setup ipv6 networking
2. start mozilla
3. open www.crypto-publish.org
4. enjoy

Actual Results:  
The page is empty - without an error message or something similar. 

Expected Results:  
error message - or fallback to IPv4 mode (which might be better).

CRUX Linux 1.1
glibc 2.3.2
gcc 3.2.2
xfree86 4.3
Linux 2.4.20, i686

Comment 1

[benc]

can you isolate the type of network error? each error has to be hooked up to a
spsecific message.

Comment 2

[Daniel Mueller]

Okay - tcpdump/ethereal:

number source destination protocol info
=======================================
1. 3ffe:b80:1678:1:201:2ff:fe06:b67f 2001:4f8:3:bb:a00:2bff:fec3:b07e TCP
"33243>http [SYN].."

2. fe80::240:f4ff:fe66:ed51 ff02::1:ff06:b67f ICMPv6 "Neighbor solicitation"

3. 3ffe:b80:1678:1:201:2ff:fe06:b67f fe80::240:f4ff:fe66:ed51 ICMPv6 "Neighbor
advertisement"

4. 2001:4f8:3:bb:a00:2bff:fec3:b07e 3ffe:b80:1678:1:201:2ff:fe06:b67f ICMPv6
"Unreachable (Administratively prohibited)
=======================================
3ffe:b80:1678:1:201:2ff:fe06:b67f --> my host
2001:4f8:3:bb:a00:2bff:fec3:b07e --> www.crypto-publish.org

ICMPv6 Unreachable (Administratively prohibited)
Type:1 = Unreachable
Code:1 = Administratively prohibited

Is this the information which you need ?

Comment 3

[benc]

-> new.

Yes. that kind of detailed information is great. most of my experience (and
books) are pre-ipv6.

Comment 4

[Doug Turner (:dougt)]

to darin.

Comment 5

[Matthias Versen [:Matti]]

we have now a 300ms fallback with bug 621558
There is no AAAA record for the given URL www.crypto-publish.org