We routing now (lol)

lib.shs

@@ -18,6 +18,19 @@ ensure_started() {
 	test -e state/$mach/$netns || machines/$mach/start.sh
 }
 
+setup_for_router4() {
+	sysctl net.ipv4.conf.all.forwarding=1
+}
+
+setup_for_router6() {
+	sysctl net.ipv6.conf.all.forwarding=1
+}
+
+setup_for_router() {
+	setup_for_router4
+	setup_for_router6
+}
+
 attach() {
 	machines/$mach/attach.sh "$@"
 }

machines/hispgw/setup.sh

@@ -1,9 +1,13 @@
 #!/bin/sh
 set -eu
 
+. ./lib.shs
+
 # typically: bring up the networks
 ip link set dev lo up
 
+setup_for_router
+
 # uplink
 # glue networks for both AFs
 ip addr add 100.64.224.2/30 dev up_ve

machines/iana/setup.sh

@@ -1,9 +1,13 @@
 #!/bin/sh
 set -eu
 
+. ./lib.shs
+
 # typically: bring up the networks
 ip link set dev lo up
 
+setup_for_router
+
 # some random address in the internet :-P
 ip link add somewhere type dummy
 ip addr add 100.111.0.1/32 dev somewhere