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SG300 Routing issue

Good Afternoon All,

 

I'm having difficulties setting up my Cisco SG300 switch with a WatchGuard XTM 26 and was wondering if I could have your assistance.....

 

Below is my current setup and what I am trying to achieve

 

Cisco SG300 Switch

  • Switch in L3 mode
  • x3 VLAN's configured excluding Mangement VLAN 1
    • VLAN 10 - Guest Network
    • VLAN 20 - Home Network
    • VLAN 30 - Test Environment
  • Each VLAN has its own IPv4 Interface
    • VLAN 10 - 192.168.10.254
    • VLAN 20 - 192.168.20.254
    • VLAN 30 - 192.168.30.254
  • DHCP Pools are setup on the following VLAN's
    • VLAN 10 - 192.168.10.1 - 192.168.10.253
    • VLAN 20 - 192.168.20.1 - 192.168.20.253
  • Access Control Lists are configured to prevent each network from seeing the other
  • IPv4 Routes are shown in attached photo
  • Port to VLAN's are setup as follows
    • GE1 - Management VLAN
    • GE2 - Cable to WatchGuard's trusted interface
    • GE3 - Guest VLAN 10
    • GE4 - Home VLAN 20
    • GE5 - Test Envirnoment VLAN 30
    • GE8 - Wi-Fi AP
  • Interface settings on switch
    • GE1 - Trunk
    • GE2 - Trunk
    • GE3 - Access
    • GE4 - Access
    • GE5 - Access
    • GE8 - Trunk (As Wi-Fi will be broadcasting more than 1 network and will require access to VLAN's
  • Port to VLAN
    • VLAN 10 - GE2 Tagged, GE3 Untagged, GE8 Tagged
    • VLAN 20 - GE2 Tagged, GE4 Untagged, GE8 Tagged
    • VLAN 30 - GE2 Tagged, GE5 Untagged, GE8 Tagged

 

I am trying to point all these VLAN's to next hop over to the WatchGuard which is on IP 10.0.10.254.

 

When I try to create a IPv4 Route of 0.0.0.0 255.255.255.0 I receive the following error "Only a directly connected router can be defined as the gateway"

 

Can somebody tell me where I am going wrong :S 

 

Thanks,

 

Nick

 

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