+<B><I>ALL</I></B> your links! Remember, this is a <I>default</I>
+filter for node connections, not a <I>per link</I> default.
+<P>
+<P>For the default routing filter then you have two real choices: either
+a "national" view or the "safe" option of only your own
+callsign. Examples of each (for my node: GB7DJK) are:-
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+acc/route node_default call_dxcc 61,38
+acc/route node_default call gb7djk
+</PRE>
+</CODE></BLOCKQUOTE>
+<P>GB7DJK uses the first of these. The DXCC countries can be obtained from the
+<I>show/prefix</I> command.
+<P>
+<P>The example filters shown control <I>output</I> <B>TO</B> all your
+partner nodes unless they have a specific filter applied to them (see
+next section).
+<P>
+<P>It is also possible to control the <I>incoming</I> routing
+information that you are prepared to accept <B>FROM</B> your partner
+nodes. The reason this is necessary is to make sure that stuff like
+mail, pings and similar commands a) go down the correct links and b)
+don't loop around excessively. Again using GB7DJK as an example a typical
+default input filter would be something like:
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+rej/route node_default input call_dxcc 61,38 and not channel_dxcc 61,38
+</PRE>
+</CODE></BLOCKQUOTE>
+<P>What this does is accept node and user information for our national
+network from nodes that are in our national network, but rejects such
+information from anyone else. Although it doesn't explicitly say so,
+by implication, any other node information (not from the UK and Eire)
+is accepted.
+<P>
+<P>As I imagine it will take a little while to get one's head around all of
+this you can study the effect of any rules that you try by watching the
+debug output after having done:-
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+set/debug filter
+</PRE>
+</CODE></BLOCKQUOTE>
+<P>After you have got tired of that, to put it back the way it was:-
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+unset/debug filter
+</PRE>
+</CODE></BLOCKQUOTE>