ipv6 and XDMCP

I'm setting up a network where logins happen via gdm + XDMCP. Everything
works fine, except that all the Fedora Core 2 machines show up twice in
the browser, once with their IPV4 name and IP address, and once with just
the IPV6 address.

This is really frustrating... I can't figure out how to turn off the
ipv6 address in Fedora Core 2.

Is there a way to prevent ifconfig (or the kernel) issuing out IPV6
addresses? Do I need to turn off all of the IPV6 stuff in the kernel and
recompile?

Is there a setting somewhere that I've missed?

TIA

On Tue, 18 Jan 2005 19:16:47 -0800, Captain Dondo wrote:
> I'm setting up a network where logins happen via gdm + XDMCP. Everything
> works fine, except that all the Fedora Core 2 machines show up twice in
> the browser, once with their IPV4 name and IP address, and once with just
> the IPV6 address.
>
> This is really frustrating... I can't figure out how to turn off the
> ipv6 address in Fedora Core 2.

I know on Mandrakelinux you can read
/etc/sysconfig/network-scripts/ifup
to see what can controls can be used.

For us,

/etc/sysconfig/network and add the line
NETWORKING_IPV6=no (note: add a carriage return)

Update
/etc/modules.conf and add the line
alias net-pf-10 off (note: add a carriage return)

if you do not have
/etc/modprobe.conf and add the line
alias net-pf-10 off (note: add a carriage return)

"Captain Dondo" <(E-Mail Removed)> wrote in message
news(E-Mail Removed) om

> I'm setting up a network where logins happen via gdm + XDMCP.
> Everything works fine, except that all the Fedora Core 2 machines
> show up twice in the browser, once with their IPV4 name and IP
> address, and once with just the IPV6 address.
>
> This is really frustrating... I can't figure out how to turn off the
> ipv6 address in Fedora Core 2.
>
> Is there a way to prevent ifconfig (or the kernel) issuing out IPV6
> addresses? Do I need to turn off all of the IPV6 stuff in the kernel
> and recompile?
>
> Is there a setting somewhere that I've missed?

You might try:

In /etc/syscong/network
NETWORKING_IPV6=no

and in /etc/modprobe.conf
# Turn off IPv6
alias net-pf-10 off
alias ipv6 off



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On Tue, 18 Jan 2005 21:52:41 -0800, ynotssor wrote:

> You might try:
>
> In /etc/syscong/network
> NETWORKING_IPV6=no
>
> and in /etc/modprobe.conf
> # Turn off IPv6
> alias net-pf-10 off
> alias ipv6 off

<rant>

From /etc/sysconfig/networking-scripts/ipv6-init.global:

# NETWORKING_IPV6=yes|no: controls global IPv6 initialization (default: no)

Note the default.... Nowhere was I able to find a line that says
NETWORKING_IPV6=yes

Clearly, the default has changed from Fedroa Core 1 to 2 and the docs have
not kept pace...

</rant>

(I know, I should offer to update the documentation.....)

Thanks for the pointers, guys. I'll make the changes when the computers
wake up this morning....