Dear All, having looked through the documentation and faqs and searched this mailing list archives without luck, I'm now appealing to the collective wisdom for suggestions. We used gnugk for a few years without firewall and without problems. Now we installed a firewall at last. I have an external gatekeeper in the dmz (full proxy) and and internal one in the loc zone. Both gnugk 2.2.7 on Debian. What I want to achieve: internal users register on the internal gatekeeper and they can call outside AND be called at the e.164 number space we are allocated (the same as our phone numbers, 00390xxxxxx2yy, where yy is the same as the phone extension). External users can register on the external gatekeeper and call and be called on the SAME address space (00390xxxxxx2yy). What I could achieve so far in all my attempts: a) The internal gatekeeper is registered as a child of the external one, I add a fake number to our prefix, turning it into 00390xxxxxx29yy, delegate the whole 00390xxxxxx29 prefix to the internal gatekeeper. The result is the behaviour I want for external users, whereas internal ones can call outside, but of course can only be reached at the e.164 numbers 00390xxxxxx29yy, which is far less than convenient. If I don't do the delegation and stick to the "proper" numbers, (i.e. parent and child share the same address space) incoming calls for endpoints registered with the internal gatekeeper are rejected (unregistered endpoint) even if I modified the routing to internal,neighbor and configured the two neighbours of the external gatekeeper (the parent gatekeeper, root of the national hierarchy we belong to, and our internal gatekeeper) so that the prefixes that belong to us, i.e. 2 (internally generated),0xxxxxx2,00390xxxxxx2 are not routed to the parent gatekeeper whereas the child accepts only them. b) I tried defining the internal gatekeeper as a neighbour of the external one, but is does nowt work even for calling outside, since the external gatekeeper does not act as a proxy, and sends the parent gatekeeper a message including caller and called addresses. Of course the parent gatekeeper rejects that since the caller address (the internal gatekeeper) is in private address space. ? Grateful for any suggestions... Thanks to all Alessandro -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/