Adding DNS ALG support to Bind?

[Mark Andrews]

In message <563C3477.6070303 at tnetconsulting.net>, Grant Taylor writes:
> On 11/05/2015 03:44 PM, Mark Andrews wrote:
> > You may want to add a "_dns-update._udp.example.net SRV" record
> > pointing to the nameservers as someone convinced the router vendor(s)
> > that this is how you do it rather than that being a override to the 
> > default of just sending to the nameservers for the record to be 
> > updated.
> 
> I've run into multiple networks where the master name server is
> inaccessible.  So, it's not possible for the Dynamic DNS client to send
> updates there.

The UPDATE standard say ANY of the nameservers but to prefer the
server which matches the MNAME.

> Further, some DNS servers will not forward Dynamic DNS updates.  (Bind
> can be configured to forward Dynamic DNS updates quite easily.)

All of which is orthogonal to whether the router follows the standard
or not.

> -- 
> Grant. . . .
> unix || die
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org