On Wed, Aug 11, 2010 at 3:53 PM, William L. Thomson Jr.
<[email protected]> wrote:
> On Wed, 2010-08-11 at 15:44 -0400, robert mckennon wrote:
>> On Wed, Aug 11, 2010 at 3:09 PM, William L. Thomson Jr.
>> >
>> > Sorry the device has to be created. Most applications will do this step
>> > for you and others, makes one lazy and some what ignorant :)
>> >
>> > Not well documented, no mention in man page :(
>> >
>> > ip tuntap help
>> > Usage: ip tuntap { add | del } [ dev PHYS_DEV ]
>> >          [ mode { tun | tap } ] [ user USER ] [ group GROUP ]
>> >          [ one_queue ] [ pi ] [ vnet_hdr ]
>> >
>> > If your creating a tunnel thats better documented, man page has a
>> > section ip tunnel ( ~ line 1234 ip tunnel - tunnel configuration ) or
>> > for abbreviated usage instructions command line via
>> > ip tunnel help
>> >
>> > Tunnel References
>> > http://www.techonia.com/create-tunnel-interface-linux
>> > http://kovyrin.net/2006/03/17/how-to-create-ip-ip-tunnel-between-freebsd-and-linux/
>> >
>> >
>> > --
>>
>> I looked at all the above info, and I don't think this applies in my
>> case.  Other software is creating the tunnel,
>
> If its creating the tunnel then the device interface should exist. If
> both ifconfig -a and ip link do not show the interface, regardless of it
> being up or down, it does not exist yet.
>
>>  I just need to get the
>> tap0 up and the Hercules software will create the bridge.
>
> That doesn't make sense, software creates the tunnel, but you have to
> manually bring it up, and then the software will create the bridge.
>
> Seems rather odd, and if its created, it should exist, and could easily
> bring up with ifconfig or ip, just as any interface. Unless for some
> reason it's not tun0/tap0 but tun1/tap1 or other. But then ones before
> should exist, unless they did when the others were created and removed
> since.
>
>>   I've never
>> had an issue with this in the past, but this is the first time running
>> the host OS on 64bit.
>
> Lets back up, does the kernel have tun/tap support? Is the tun module
> loaded, or compiled into kernel?
>

When I do a lsmod:

r...@slack-ibm:/raid/hercules# lsmod |grep tun
tun                    13824  0

And I wouldn't have posted this to the list if I hadn't already spent
several hours searching for an answer.

Rob.

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