X-Git-Url: https://git.distorted.org.uk/~mdw/firewall/blobdiff_plain/fdaf00a6cbd1568ce6e4de2b424547060ba0ae60..d119795e592c937a94fa012f65590f032af373f3:/vampire.m4

diff --git a/vampire.m4 b/vampire.m4
index 7584566..55c7961 100644
--- a/vampire.m4
+++ b/vampire.m4
@@ -108,5 +108,15 @@ run iptables -t nat -A outbound -j RETURN -d 172.29.198.0/23
 run iptables -t nat -A outbound -j SNAT --to-source 62.49.204.158
 run iptables -t nat -A POSTROUTING -j outbound
 
+## Set up NAT protocol helpers.  In particular, SIP needs some special
+## twiddling.
+run modprobe nf_conntrack_sip \
+  ports=5060 \
+  sip_direct_signalling=0 \
+  sip_direct_media=0
+for p in ftp sip h323; do
+  run modprobe nf_nat_$p
+done
+
 m4_divert(-1)
 ###----- That's all, folks --------------------------------------------------