create P4 basis + smaller updates

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

p4app/static-mapping.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+
+set -x
+
+# cleanup
+for i in 1 2 3 4; do
+    mx h$i "ip addr flush dev $dev"
+done
+
+# host 1/2+42 need NDP for reaching themselves
+for i in 1 2; do
+    dev="h$i-eth0"
+    # add and enable ipv6
+    mx h$i "sysctl net.ipv6.conf.{lo,h$i-eth0}.disable_ipv6=0"
+    mx h$i "ip addr add 2001:db8:6::$i/64 dev $dev"
+    mx h$i "ip -6 route add default via 2001:db8:6::42"
+
+    # add neighbors
+    for j in 1 2 42; do
+        mx h$i "ip -6 neigh add 2001:db8:6::${j} dev $dev lladdr 00:00:0a:00:00:0${j}"
+    done
+done
+
+# host 3/4 need ARP, also need access to .42 (virtual IP)
+for i in 3 4; do
+    dev="h$i-eth0"
+    mx h$i "ip addr add 10.0.0.$i/24 dev $dev"
+
+    # add arp
+    for j in 1 2 42; do
+        mx h$i "ip neigh add 10.0.0.${j} dev $dev lladdr 00:00:0a:00:00:${j}"
+    done
+done
+
+for i in 1 2 3 4; do
+    mx h$i "ip neigh show"
+done