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-rw-r--r--extensions/libxt_TCPMSS.txlate5
1 files changed, 5 insertions, 0 deletions
diff --git a/extensions/libxt_TCPMSS.txlate b/extensions/libxt_TCPMSS.txlate
new file mode 100644
index 00000000..6a64d2ce
--- /dev/null
+++ b/extensions/libxt_TCPMSS.txlate
@@ -0,0 +1,5 @@
+iptables-translate -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
+nft add rule ip filter FORWARD tcp flags & (syn|rst) == syn counter tcp option maxseg size set rt mtu
+
+iptables-translate -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 90
+nft add rule ip filter FORWARD tcp flags & (syn|rst) == syn counter tcp option maxseg size set 90