Found in chiark:/etc/userv/ipif-networks

diff --git a/ipif/ipif-networks b/ipif/ipif-networks
new file mode 100644 (file)
index 0000000..dbfde2c
--- /dev/null
+++ b/ipif/ipif-networks
@@ -0,0 +1,3 @@
+# chiark per-user VPN subnets 172.31.80.0/24
+# gid,range            group,  description
+100,172.31.80.0/28,    ian,    Relativity-chiark VPN