Fortigate and L2TP traffic

I have setup L2TP on my Fortigate.

I can connect just fine, but no traffic is passing though.
I can't see the traffic in Forward Traffic.

My config:
config vpn l2tp
set status enable
set eip 10.170.7.254
set sip 10.170.7.1
set enforce-ipsec enable
set usrgrp "UG_XXX"
end

config vpn ipsec phase1
edit "XXX_L2TP"
set type dynamic
set interface "Outside_ITC-HSH"
set peertype any
set proposal 3des-sha1 aes192-sha1 aes256-md5
set dpd disable
set dhgrp 2
set psksecret ENC XXXXXXXXXXXXXX

next
end

config vpn ipsec phase2
edit "XXX_L2TP"
set phase1name "XXX_L2TP"
set proposal 3des-sha1 aes192-sha1 aes256-md5
set pfs disable
set encapsulation transport-mode
set l2tp enable
set keylifeseconds 86400
next
end

config firewall policy
edit 7
set name "L2TP"
set uuid 2ce058fc-493e-51ec-c012-283ea33c9dd4
set srcintf "2012_XXX"
set dstintf "Outside_XXX"
set action ipsec
set srcaddr "all"
set dstaddr "all"
set schedule "always"
set service "ALL"
set inbound enable
set vpntunnel "XXX_L2TP"
next
edit 8
set name "L2TP ingoing"
set uuid a63e7bce-493f-51ec-a50c-8e50916a25c3
set srcintf "Outside_XXX"
set dstintf "2012_XXX"
set action accept
set srcaddr "Net_XXX"
set dstaddr "any"
set schedule "always"
set service "ALL"
next

end



XXX is not its real name, but it have been anonymous 


I can connect just fine for my Windows machine, but i can't ping anything behind the firewall, and i don't see the traffic in Forward Traffic. Can anyone help ?