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-rw-r--r--package/firewall/files/lib/core_interface.sh4
1 files changed, 3 insertions, 1 deletions
diff --git a/package/firewall/files/lib/core_interface.sh b/package/firewall/files/lib/core_interface.sh
index 84e07e0e2..8023e7fb8 100644
--- a/package/firewall/files/lib/core_interface.sh
+++ b/package/firewall/files/lib/core_interface.sh
@@ -96,7 +96,9 @@ fw_configure_interface() {
fw $action $mode f ${chain}_REJECT reject $ { -o "$ifname" $onet }
fw $action $mode f ${chain}_REJECT reject $ { -i "$ifname" $inet }
- fw $action $mode f ${chain}_MSSFIX TCPMSS $ { -o "$ifname" -p tcp --tcp-flags SYN,RST SYN --clamp-mss-to-pmtu $onet }
+ [ "$(uci_get_state firewall core "${zone}_tcpmss")" == 1 ] && \
+ fw $action $mode m ${chain}_MSSFIX TCPMSS $ \
+ { -o "$ifname" -p tcp --tcp-flags SYN,RST SYN --clamp-mss-to-pmtu $onet }
fw $action $mode f input ${chain} $ { -i "$ifname" $inet }
fw $action $mode f forward ${chain}_forward $ { -i "$ifname" $inet }