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N3048 VLAN routing and default gateway

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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
!
configure
vlan 8,10
exit
vlan 8
name "test"
exit
vlan 10
name "legacy"
exit
slot 1/0 3 ! Dell Networking N3048
stack
member 1 4 ! N3048
exit
interface out-of-band
ip address 172.16.1.1 255.255.255.0 10.10.1.10
exit
ip routing
interface vlan 1 1
exit
interface vlan 8 2
ip address 192.168.8.1 255.255.248.0
ip helper-address 10.10.1.28 dhcp
exit
interface vlan 10 3
ip address 10.10.5.59 255.255.0.0
exit
ip default-gateway 10.10.1.10
username "hivemanager" password a66badb6b8d4e17566aedc089d6d5b0e privilege 15 encrypted
username "jim" password 19fdb07ff229190ce0c088d0ab850ba2 privilege 15 encrypted
ip ssh server
application install SupportAssist auto-restart start-on-boot
application install hiveagent start-on-boot
!
interface Gi1/0/1
description "Legacy Network"
switchport access vlan 10
exit
!
interface Gi1/0/8
description "Testing"
switchport access vlan 8
exit
!
interface Gi1/0/10
description "School Network"
switchport access vlan 10
exit
snmp-server engineid local 800002a203f8b15633ec06
exit

console#show ip route

Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, K - Kernel, S - Static
B - BGP Derived, E - Externally Derived, IA - OSPF Inter Area
E1 - OSPF External Type 1, E2 - OSPF External Type 2
N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2
S U - Unnumbered Peer, L - Leaked Route

* Indicates the best (lowest metric) route for the subnet.

Default Gateway is 10.10.1.10
S *0.0.0.0/0 [253/0] via 10.10.1.10, 01h:28m:19s, Vl10
C *10.10.0.0/16 [0/0] directly connected, Vl10
C *192.168.8.0/21 [0/0] directly connected, Vl8

console#show ip vlan

MAC Address used by Routing VLANs: F8B1.5633.EC09

Logical
VLAN ID Interface IP Address Subnet Mask
------- -------------- --------------- ---------------
1 Vl1 0.0.0.0 0.0.0.0
8 Vl8 192.168.8.1 255.255.248.0
10 Vl10 10.10.5.59 255.255.0.0

console#show vlan

VLAN Name Ports Type
----- --------------- ------------- --------------
1 default Po1-128, Default
Gi1/0/2-7,
Gi1/0/9,
Gi1/0/11-48,
Te1/0/1-2
8 test Gi1/0/8 Static
10 legacy Gi1/0/1, Static
Gi1/0/10

I've attached a diagram of my setup.

Many thanks for taking the time to read and reply.


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