Comment 373 for bug 417757

I have two machines, one F10 and the other F11, behind the same ADSL router, dlink DSL 500B. F11 has no problems.

The DNS servers are set in resolv.conf to those of opendns.com

In F10 Firefox only works if network.dns.disableIPv6 is set to true. The weather applet can't connect. Yum has to try many mirrors before it finds one that works. folding@home can't connect at all.

Added these lines to modprobe.conf and rebooted:
alias net-pf-10 off
alias ipv6 off

After that Firefox works with network.dns.disableIPv6 set to false. The weather applet connects. Still Yum has try many mirrors and folding@home can't connect.

Is this the same issue reported in this bug?

# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=d2.localdomain

# cat /etc/networks
default 0.0.0.0
loopback 127.0.0.0
link-local 169.254.0.0

# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit
Ethernet controller
DEVICE=eth0
BOOTPROTO=none
DNS1=208.67.220.220
DNS2=208.67.222.222
DNS3=10.1.1.1
GATEWAY=10.1.1.1
HWADDR=00:21:97:00:79:21
IPADDR=10.1.1.110
NETMASK=255.0.0.0
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=yes
NM_CONTROLLED=yes
PEERDNS=yes

Also tried whith IPV6INIT=no.