-<P>We can now bring spider up for the first time and see if all is well or not! It should look something like this ...
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-$ cluster.pl
-DXSpider DX Cluster Version 1.35
-Copyright (c) 1998 Dirk Koopman G1TLH
-loading prefixes ...
-loading band data ...
-loading user file system ...
-starting listener ...
-reading existing message headers
-reading cron jobs
-orft we jolly well go ...
-</PRE>
-</CODE></BLOCKQUOTE>
-<P>
-<P>If all is well then login on another term or console as sysop and cd to /spider/perl. Now issue the following command ...
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-$ client.pl
-</PRE>
-</CODE></BLOCKQUOTE>
-<P>
-<P>This should log you into the cluster as the sysop under the alias callsign we set earlier. In this case the callsign is G0VGS. The cluster callsign is set in the DXVars.pm file in /spider/local. In this case we will assume that this was set as GB7MBC. You should therefore see this when you login ....
-<P>
-<BLOCKQUOTE><CODE>
-<PRE>
-G0VGS de GB7MBC 19-Nov-1999 2150Z >
-</PRE>
-</CODE></BLOCKQUOTE>
-<P>If you do, congratulations! If not, look over the instructions again, you have probably missed something out. You can shut spider down again with the command ....
+<P>It is possible to isolate networks from each other on a "gateway" node using the
+<EM>set/isolate <node_call></EM> command.
+<P>
+<P>The effect of this is to partition an isolated network completely from another
+nodes connected to your node. Your node will appear on and otherwise behave
+normally on every network to which you are connected, but data from an isolated
+network will not cross onto any other network or vice versa. However all the
+spot, announce and WWV traffic and personal messages will still be handled
+locally (because you are a real node on all connected networks), that is locally
+connected users will appear on all networks and will be able to access and
+receive information from all networks transparently. All routed messages will
+be sent as normal, so if a user on one network knows that you are a gateway for
+another network, he can still still send a talk/announce etc message via your
+node and it will be routed across.
+<P>
+<P>The only limitation currently is that non-private messages cannot be passed down
+isolated links regardless of whether they are generated locally. This will change
+when the bulletin routing facility is added.
+<P>
+<P>If you use isolate on a node connection you will continue to receive all
+information from the isolated partner, however you will not pass any information
+back to the isolated node. There are times when you would like to forward only
+spots across a link (maybe during a contest for example). To do this, isolate
+the node in the normal way and put in a filter in the /spider/filter/spots
+directory to override the isolate. This filter can be very simple and consists
+of just one line ....