Hi,
We run a WAN network that has a multitude of applications (like CUCM) that already pre-tagged their packets for prioritization. Fortigates resets all of this as its default behavior. How do I stop this? I need all the prioritizations forwarded as-is. Do I have to set up a special rule just to handle this for every interface? This seems extremely unwieldy.
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yeap you need to enable QoS on the fw-policies for the traffic in the forward state and reverse state
e.g ( a fwpolicy output )
edit 1345
set srcintf "VoIPVLAN18" set dstintf "WANISP101ATT" set srcaddr "CUCMAO" set dstaddr "GWCUJCUBE" set schedule "always" set service "CUSTOM1" "CUSTOM2" "FGT2J" set diffserv-forward enable set diffserv-reverse enable set diffservcode-forward 101110 set diffservcode-rev 101110 next end
Keep in mind if you have any switches, you need to set trust diffserv for that port leading in and out of the fortigate.
I just wrote something for my blog about this & how you can monitor the fw sessions for policies
http://socpuppet.blogspot.com/2015/02/howto-fortigate-tosdscp-markup.html
PCNSE
NSE
StrongSwan
HWong
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