X-Git-Url: https://git.distorted.org.uk/~mdw/firewall/blobdiff_plain/d052f3435f85d5b61ace87e158f77b7f37080395..994ac8d0782c89a636f47b02a2dc096c72ff58c5:/radius.m4 diff --git a/radius.m4 b/radius.m4 index 090249c..6b4a32a 100644 --- a/radius.m4 +++ b/radius.m4 @@ -58,10 +58,8 @@ iptables -A fwd-spec-nofrag -j ACCEPT \ -m state --state ESTABLISHED ## BCP38 filtering. Note that addresses here are seen before NAT is applied. -bcp38 4 ppp0 62.49.204.144/28 172.29.198.0/23 -bcp38 6 t6-he \ - 2001:470:1f08:1b98::2 2001:470:1f09:1b98::/64 \ - 2001:470:9740::/48 +bcp38 4 ppp0 81.2.113.195 81.187.238.128/28 172.29.198.0/23 +bcp38 6 ppp0 2001:8b0:c92::/48 ## NAT for RFC1918 addresses. for i in PREROUTING OUTPUT POSTROUTING; do @@ -74,15 +72,20 @@ run iptables -t nat -X run iptables -t nat -N outbound run iptables -t nat -A outbound -j RETURN ! -o ppp0 run iptables -t nat -A outbound -j RETURN ! -s 172.29.198.0/23 -run iptables -t nat -A outbound -j RETURN -d 62.49.204.144/28 +run iptables -t nat -A outbound -j RETURN -d 81.187.238.128/28 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 -## TCP MSS clamping to help given Demon's sluggish approach to fragmentation- -## needed errors. -run ip46tables -t mangle -A FORWARD -o ppp0 -p tcp --tcp-flags SYN,RST SYN \ - -j TCPMSS --clamp-mss-to-pmtu +## An awful hack. +##run iptables -t nat -A outbound -j DNETMAP --reuse \ +## -s 172.29.199.44 --prefix 81.187.238.142 +##run iptables -t nat -A outbound -j DNETMAP --reuse \ +## -s 172.29.198.34 --prefix 81.187.238.142 +##run iptables -t nat -A outbound -j DNETMAP --reuse \ +## -s 172.29.198.11 --prefix 81.187.238.142 +##run iptables -t nat -A PREROUTING -j DNETMAP + +run iptables -t nat -A outbound -j SNAT --to-source 81.187.238.142 +run iptables -t nat -A POSTROUTING -j outbound ## Set up NAT protocol helpers. In particular, SIP needs some special ## twiddling. @@ -96,9 +99,9 @@ done ## Forbid anything complicated to the NAT address. Be sure to allow ident, ## though. -run iptables -A INPUT -d 62.49.204.158 -p tcp -j ACCEPT \ +run iptables -A INPUT -d 81.187.238.142 -p tcp -j ACCEPT \ -m multiport --destination-ports=113 -run iptables -A INPUT -d 62.49.204.158 ! -p icmp -j REJECT +run iptables -A INPUT -d 81.187.238.142 ! -p icmp -j REJECT m4_divert(-1) ###----- That's all, folks --------------------------------------------------