From 91dcf00992af5753e7564b368ea2c481eb4f47d7 Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@nico-notebook.schottelius.org>
Date: Sun, 4 Aug 2024 12:05:09 +0200
Subject: [PATCH] [openwrt/nat64] disable source routing to fix routing issue

---
 openwrt/openwrt-nat64-bootstrap.sh | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/openwrt/openwrt-nat64-bootstrap.sh b/openwrt/openwrt-nat64-bootstrap.sh
index 0fe691a..beeca6f 100755
--- a/openwrt/openwrt-nat64-bootstrap.sh
+++ b/openwrt/openwrt-nat64-bootstrap.sh
@@ -24,7 +24,6 @@ routerid=$1; shift
 babelpw=$1; shift
 ibgp_peers="$@"
 
-# Now $@ only contains iBGP peers
 
 cat <<EOF | ssh -t "root@${address}"
 set -x
@@ -43,6 +42,7 @@ uci delete network.lan.ip6assign
 uci set firewall.@defaults[0].input=ACCEPT
 uci set firewall.@defaults[0].forward=ACCEPT
 
+
 # Set hostname
 uci set system.@system[0].hostname="${hostname}"
 
@@ -58,6 +58,21 @@ uci delete network.lan.netmask
 uci delete network.lan.gateway
 uci set network.lan.proto="dhcpv6"
 
+# Need to remove ipv6 source based routing - leads to route not working
+# Symptom:
+#  root@vigir28:~# ip route get 2a0a:e5c1:700::7
+#  ip: RTNETLINK answers: Network unreachable
+#  root@vigir28:~# ping -c2 2a0a:e5c1:700::7
+#  PING 2a0a:e5c1:700::7 (2a0a:e5c1:700::7): 56 data bytes
+#  64 bytes from 2a0a:e5c1:700::7: seq=0 ttl=62 time=10.774 ms
+#  64 bytes from 2a0a:e5c1:700::7: seq=1 ttl=62 time=8.597 ms
+#
+#  --- 2a0a:e5c1:700::7 ping statistics ---
+#  2 packets transmitted, 2 packets received, 0% packet loss
+#  round-trip min/avg/max = 8.597/9.685/10.774 ms
+#  root@vigir28:~#
+uci set network.lan.sourcefilter=0
+
 # Disable DHCP on LAN
 uci delete dhcp.lan.dhcpv4
 uci delete dhcp.lan.dhcpv6
@@ -138,7 +153,10 @@ cat > /etc/jool/jool-nat64.conf.json <<BBB
 BBB
 
 uci set jool.general.enabled=1
+
+# if nat64 is on, disable siit and vice versa
 uci set jool.nat64.enabled=1
+uci set jool.siit.enabled=0
 uci commit