diff --git a/doc/images/packet_flow.svg b/doc/images/packet_flow.svg
index 8d69074..f9ec7fb 100644
--- a/doc/images/packet_flow.svg
+++ b/doc/images/packet_flow.svg
@@ -1,5 +1,5 @@
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+<svg xmlns:ooo="http://xml.openoffice.org/svg/export" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" version="1.2" width="471.92218mm" height="181.53999mm" viewBox="0 0 47192.219 18154" preserveAspectRatio="xMidYMid" xml:space="preserve" id="svg2" inkscape:version="0.91 r13725" sodipodi:docname="packet-flow.svg" style="fill-rule:evenodd;stroke-width:28.22200012;stroke-linejoin:round">
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       <cc:Work rdf:about="">
@@ -413,7 +413,7 @@
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