disable IPV6?
Randy Schrickel
randysch at comcast.net
Sat Mar 6 20:10:42 UTC 2004
Daniel Roesen wrote:
> So unless you _have_ IPv6 outside connectivity (either by some router on
> your LAN advertising a default route to your host or by yourself
> configuring a static IPv6 default route), there is no default route and
> any attempt to connect to an IPv6 address outside your local LAN will
> _immediately_ result in a "no route to host" and thus a failure. Without
> noticable delay.
> If someone has long timeout delays, there is something misconfigured...
> e.g. a static default to a nonexistant default router. THIS needs to
> be fixed.
Here's the output from a dnslookup, ifconfig, and 'netstat -rn' on my
box, with just IPV4 configured followed by the IPV6 results (as setup by
the Fedora install):
IPV4:
0.000000 192.168.0.100 -> 68.54.80.5 DNS Standard query A
www.google.com
0.011393 68.54.80.5 -> 192.168.0.100 DNS Standard query response
CNAME www.g
oogle.akadns.net A 216.239.39.147 A 216.239.39.104 A 216.239.39.99
eth0 Link encap:Ethernet HWaddr 00:01:03:C1:D1:BE
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::201:3ff:fec1:d1be/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:51 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9416 (9.1 Kb) TX bytes:4229 (4.1 Kb)
Interrupt:10 Base address:0xd400
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0
eth0
And here's the IPV6 version:
0.000000 192.168.0.100 -> 68.54.80.5 DNS Standard query AAAA
www.google.com
5.000097 192.168.0.100 -> 68.54.80.5 DNS Standard query AAAA
www.google.com
5.010537 68.54.80.5 -> 192.168.0.100 DNS Standard query response
CNAME www.g
oogle.akadns.net
5.010918 192.168.0.100 -> 68.54.80.5 DNS Standard query A
www.google.com
5.024892 68.54.80.5 -> 192.168.0.100 DNS Standard query response
CNAME www.g
oogle.akadns.net A 216.239.39.104 A 216.239.39.99 A 216.239.39.147
5.025460 192.168.0.100 -> 68.54.80.5 DNS Standard query PTR
104.39.239.216.i
n-addr.arpa
10.025349 192.168.0.100 -> 68.54.80.5 DNS Standard query PTR
104.39.239.216.i
n-addr.arpa
10.039552 68.54.80.5 -> 192.168.0.100 DNS Standard query response,
No such na
me
10.039963 192.168.0.100 -> 68.54.80.5 DNS Standard query AAAA
www.google.com
10.050470 68.54.80.5 -> 192.168.0.100 DNS Standard query response
CNAME www.g
oogle.akadns.net
10.051063 192.168.0.100 -> 68.54.80.5 DNS Standard query PTR
99.39.239.216.in
-addr.arpa
15.050580 192.168.0.100 -> 68.54.80.5 DNS Standard query PTR
99.39.239.216.in
-addr.arpa
(that was from loading http://www.google.com Note the AAAA responses)
eth0 Link encap:Ethernet HWaddr 00:01:03:C1:D1:BE
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::201:3ff:fec1:d1be/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:123 errors:0 dropped:0 overruns:0 frame:0
TX packets:163 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:68112 (66.5 Kb) TX bytes:17927 (17.5 Kb)
Interrupt:10 Base address:0xd400
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0
eth0
Routing looks the same in either case. /etc/resolv.conf is the same for
both, namely this:
; generated by /sbin/dhclient-script
nameserver 68.54.80.5
If there's something else in the config that's needed, without shutting
off ipv6, that'd be fine. I just wanted to get my net connection working
the way it should, and turning ipv6 off did the trick. .Any other tests
or suggestions?
Thanks,
randy
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