dhcp-relay over tun interface - solution?

[Shane Kerr]

On Thu, 2 Jan 2014 20:19:16 +0100
Stefan Bauer <stefan.bauer at cubewerk.de> wrote:

> Von:	Shane Kerr <shane at isc.org>
> > With the latest DHCP you should be able to enable sockets via an
> > option to the ./configure script:
> > 
> > $ ./configure --enable-use-sockets
> > 
> > That should do the same thing as the patch there.
> 
> Hi Shane,
> 
> i can set the flag but it drops the following error:
> 
> ../common/libdhcp.a(socket.o): In function `if_register6':
> socket.c:500: undefined reference to `get_hw_addr'
> collect2: error: ld returned 1 exit status
> 
> any ideas on that?
> 
> Machine is debian6 - 64bit with isc-dhcp-4.2.2

Hm... it looks like the --enable-use-sockets option is currently
broken. :(

The attached patch should fix the build, but it is not a proper
solution.

The DHCP software uses the lower-level code for both packet
sending/receiving and for identifying which interfaces are available.
In the case of a tun device, we want the generic send/receive code, but
the OS-specific interface code. Ideally these two types of
functionality would be separated. I'll open a ticket here so we can
consider this.

Cheers,

--
Shane
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