The N3048 config looks good to me. We know VLAN routing is working based on your tests. It sounds like the clients on the existing network are sending packets destined for VLAN 8 to 10.10.1.10. And 10.10.1.10 does not know where VLAN 8 subnet resides. Is it possible to plug the firewall into the N3048? What model switches are the existing switches?
Many thanks again for the previous help. However, I'm now trying to set this up in our 'live' network and I've run into a problem with (I think) the default gateway. Our current network uses the 10.10.0.0 255.255.0.0 network and our current DG is set to our firewall and is 10.10.1.10. To introduce our N3048 into our network I've setup a VLAN 10 (10.10.5.59 255.255.0.0) which I plan to set as an access port and plug existing uplinks into. I will then create additional VLANs and slowly move downlink switches across onto these other VLANs. In preparation, I've setup VLAN 8 (192.168.8.0 255.255.248.0) for testing. I've setup a test PC with a fixed IP address (192.168.8.9/21) connected to port 8 setup as access to VLAN 8. Another PC has a fixed IP of 10.10.0.10/16) connected to port 1 setup as access to VLAN 10. Both of these PCs have the VLAN IP set as their default gateway. I can ping each PC from the other. The N3048 uplinks to a nework switch on port 10 setup as access to VLAN 10. My problem is that I can't ping devices on our existing network from VLAN 8, even though they are connected. However, I can ping devices on VLAN 10 if I change their default gateway to the IP address of VLAN 10. Is it possible to leave my current devices with their DG set to 10.10.1.10, but still access them from VLAN 8? My running config is: !Current Configuration:!Software Capability "ACCESS ROUTER"!Image File "N3000_N2000v6.3.1.11"!System Description "Dell Networking N3048, 6.3.1.11, Linux 3.6.5-7dc37651"!System Software Version 6.3.1.11!configurevlan 8,10exitvlan 8name "test"exitvlan 10name "legacy"exitslot 1/0 3 ! Dell Networking N3048stackmember 1 4 ! N3048exitinterface out-of-bandip address 172.16.1.1 255.255.255.0 10.10.1.10exitip routinginterface vlan 1 1exitinterface vlan 8 2ip address 192.168.8.1 255.255.248.0ip helper-address 10.10.1.28 dhcpexitinterface vlan 10 3ip address 10.10.5.59 255.255.0.0exitip default-gateway 10.10.1.10username "hivemanager" password a66badb6b8d4e17566aedc089d6d5b0e privilege 15 encryptedusername "jim" password 19fdb07ff229190ce0c088d0ab850ba2 privilege 15 encryptedip ssh serverapplication install SupportAssist auto-restart start-on-bootapplication install hiveagent start-on-boot!interface Gi1/0/1description "Legacy Network"switchport access vlan 10exit!interface Gi1/0/8description "Testing"switchport access vlan 8exit!interface Gi1/0/10description "School Network"switchport access vlan 10exitsnmp-server engineid local 800002a203f8b15633ec06exit console#show ip route Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, K - Kernel, S - StaticB - BGP Derived, E - Externally Derived, IA - OSPF Inter AreaE1 - OSPF External Type 1, E2 - OSPF External Type 2N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2S U - Unnumbered Peer, L - Leaked Route * Indicates the best (lowest metric) route for the subnet. Default Gateway is 10.10.1.10S *0.0.0.0/0 [253/0] via 10.10.1.10, 01h:28m:19s, Vl10C *10.10.0.0/16 [0/0] directly connected, Vl10C *192.168.8.0/21 [0/0] directly connected, Vl8 console#show ip vlan MAC Address used by Routing VLANs: F8B1.5633.EC09 LogicalVLAN ID Interface IP Address Subnet Mask------- -------------- --------------- ---------------1 Vl1 0.0.0.0 0.0.0.08 Vl8 192.168.8.1 255.255.248.010 Vl10 10.10.5.59 255.255.0.0 console#show vlan VLAN Name Ports Type----- --------------- ------------- --------------1 default Po1-128, DefaultGi1/0/2-7,Gi1/0/9,Gi1/0/11-48,Te1/0/1-28 test Gi1/0/8 Static10 legacy Gi1/0/1, StaticGi1/0/10 I've attached a diagram of my setup. Many thanks for taking the time to read and reply.
N3048 VLAN routing and default gateway