diff --git a/README.md b/README.md
index 8127dee..f6e7a77 100644
--- a/README.md
+++ b/README.md
@@ -25,10 +25,12 @@ solution like [PathVector][pv].
 
 ## Defining BGP sessions
 
-You can use [`skeleton.conf`][skeleton] as a basic `bird` starting config. Note
-that in this config, static protocol routes are internal to `bird` and will not
-be exported to the kernel routing table. You can change this by changing the
-export rules for `protocol kernel`.
+You can use [`skeleton.conf`][skeleton] as a basic `bird` starting config.
+Remember to read the `NOTE`s and change the things marked `FIXME`.
+
+Also note that in this config, static protocol routes are internal to `bird`
+and will not be exported to the kernel routing table. You can change this by
+changing the export rules for `protocol kernel`.
 
 This filter library makes use of two basic static protocols:
 * `node_v4`: IPv4 routes to be exported by the `export_cone` helper.
diff --git a/skeleton.conf b/skeleton.conf
index 04b0fcf..aa13b14 100644
--- a/skeleton.conf
+++ b/skeleton.conf
@@ -8,6 +8,20 @@ protocol kernel {
     scan time 60;
     ipv4 {
         export where source != RTS_STATIC;
+        # NOTE: this basic export above doesn't make the routes inserted into
+        # the kernel prefer your own IPs. Things will work fine with your
+        # server's IP assigned by the provider if you have a single upstream
+        # but strange things will happen if you have more than one peer.
+        # Instead, to use your own IP as the default source IP for outgoing
+        # connections on your system, add an IP from your range to the `lo`
+        # interface, remove the line above, and use the block below, changing
+        # 192.0.2.1 to the IP used.
+        #
+        # export filter {
+        #     if source = RTS_STATIC then reject;
+        #     if source = RTS_BGP then krt_prefsrc = 192.0.2.1;
+        #     accept;
+        # };
     };
 }
 
@@ -15,6 +29,13 @@ protocol kernel {
     scan time 60;
     ipv6 {
         export where source != RTS_STATIC;
+        # NOTE: similar to above, use the following block to change the default
+        # source IP for outgoing connections.
+        # export filter {
+        #     if source = RTS_STATIC then reject;
+        #     if source = RTS_BGP then krt_prefsrc = 2001:db8::1;
+        #     accept;
+        # };
     };
 }