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THG
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Posts: 472
Joined: Thu Oct 15, 2009 1:05 am

Some firewall rules were changed after the upgrade.

Tue Oct 04, 2016 6:51 pm

All of my X86 router's SPI firewall rules were changed after the upgrade. I do not know when or what version I had before.

Before upgrade.
/ip firewall filter
add chain=forward protocol=tcp connection-state=invalid \
 	action=drop comment="drop invalid connections"  
add chain=forward connection-state=established action=accept \ 
 	comment="allow already established connections"  
add chain=forward connection-state=related action=accept \
 	comment="allow related connections"

After the upgrade.
/ip firewall filter
add chain=forward protocol=tcp connection-state="" \
 	action=drop comment="drop invalid connections"  
add chain=forward connection-state="" action=accept \ 
 	comment="allow already established connections"  
add chain=forward connection-state="" action=accept \
 	comment="allow related connections"

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