IPv6 DNS lookups and delay

[Jonas]

Hello this maybe isn't a Lucid question but I didn't know where to post(the problem persists in my Karmic install too)

I bought a router D-link DIR-655 (I didn't have one before) and is new to those devices. I set it up to my best knowledge and it seemed to work ok, however it there was a delay loading websites and other web related things(dictionary, plasmoid downloads etc) and it seems to be this bug.

The workaround according to post #59
[...]
"Open /etc/resolv.conf and reorder the nameserver lines (first to last, etc.). Do not restart, do not reconnect, just have a look if this solves your problem."

my /etc/resolv.conf look like this

# Generated by NetworkManager
domain bahnhof.se
search bahnhof.se
nameserver 192.168.0.1

When I change it seem to be slightly better but the change wont stay after a reboot, I assume that it have something to do with the above workaround in KK/JJ and changes in LL and networkmanager ? Are there changes I can make in the router setup? I'm not very experienced with routers and such

As far as I understand the ISP need to have IPv6 enabled which maybe shouldn't be a issue in 2010 in EU/US(?). I just got a new fiberoptics 100Mb/s connection with a 3 month 'gratis' trial, I guess it would be possible they cut IPv6 for trial customers or..?
(I e-mailed them and asked)

I have little experience with networking and not sure how to solve this ~30 sec delay, what would be the best solution until the patch/fix for the bug? (...if it even is this bug) Someone mentioned the solution to remove IPv6 DNS lookups, not sure how I would do that. EDIT; disabled DNS:Ipv6 in firefox, all other apps/system suffer still tho.

Thank you for any help
/Jonas

ifconfig
eth0   Link encap:Ethernet HWaddr 00:1b:fc:a0:15:71 
     inet addr:192.168.0.199 Bcast:192.168.0.255 Mask:255.255.255.0
     inet6 addr: fe80::21b:fcff:fea0:1571/64 Scope:Link
     UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
     RX packets:1758 errors:0 dropped:0 overruns:0 frame:0
     TX packets:2040 errors:0 dropped:0 overruns:0 carrier:0
     collisions:0 txqueuelen:1000 
     RX bytes:1119062 (1.1 MB) TX bytes:361334 (361.3 KB)
     Interrupt:28 Base address:0x2000 

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:84 errors:0 dropped:0 overruns:0 frame:0
     TX packets:84 errors:0 dropped:0 overruns:0 carrier:0
     collisions:0 txqueuelen:0 
     RX bytes:4368 (4.3 KB) TX bytes:4368 (4.3 KB)

[vista killer]

Re: IPv6 DNS lookups and delay

I have a network problem and i was try every solution i found. Finally i try to disable ipv6 and i think i have done to resolve my problem. i try this command in root terminal

echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6

and i have edit

/etc/rc.local

and i have write the above command above exit 0.
This works for me and i dont have the internet problem.

[Jonas]

Re: IPv6 DNS lookups and delay

cheers mate! fixed it sortof

That bug is quite annoying, I would have hoped there was a workaround that didn't drop IPv6.

I was incorrect with that Karmic didn't work as it should, it seems that it did just now when I switched over to it.
And the /etc/resolv.conf look like this

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#   DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.0.1
search bahnhof.se

How would I go on to force this "switch" on Lucid, would it be a better solution then to disable IPv6 ?