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problem of Vlans connection

Hello
please help
according to the schema j have a proleme of interconnection between the virtual lans connect a LAN interface
i have a sophos xg connect directly to the cisco switch through the LAN interface
the IP address of the LAN interface is x.x.4.100
ip address of switch x.x.4.1
the sub networks (vlans) to create at the cisco level is
x.x.4.0
x.x.1.0
x.x.3.0

.the swtich manages inter-vlan routing
at the switch level there is a default route
0.0.0.0 0.0.0.0 x.x.4.1
at firewall level
routing is well add
example
x.x.1.0 >> GW: x.x.4.1 >> the LAN interface
x.x.3.0 >> GW: x.x.4.1 >> the LAN interface

at sophos level
> subnets communicate well with each other (x.x.4.0; x.x.1.0; x.x.3.0)

the rules add
> rule Lan to WAN
source: LAN
net / host: x.x.4.0 - x.x.1.0 - x.x.3.0
destination: WAN
service: Any
NAT: activate MASQ

I found that the only network that connects to WAN is x.x.4.0 the others not

      I want to know how can I create Vlan at the LAN interface level? and the rules I need so that all Vlan can connect to WAN
 thank you in advance

 

 



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