Cisco SG500X RoaS w/ Sonicwall

[MasterfulMethods]

Hey Everyone, I'm pretty new to working with Cisco equipment and am in need of some assistance. I'm in the process of configuring a pair of SG500 switches in a stack with a Sonicwall TZ205, basically in a Router-On-A-Stick type configuration. First (and preferred) attempt was InterVLAN routing configuration, but it was not working out and we really need to get this project rolling, so it was decided to switch to this configuration because it SHOULD be much easier to setup.

The configuration is pretty simple, it'll be a VLAN10 (which i've made the native VLAN) and VLAN12 (Voice for Cisco IP Phones) and Sonicwall as Gateway.

I think the only problem I'm having is the Trunk to the Sonicwall...i'm not able to communicate out from admin computer, or even from the SG500.

SG500X#show run
config-file-header
SG500X
v1.3.7.18 / R750_NIK_1_35_647_358
CLI v1.0
set system queues-mode 4
!
vlan database
default-vlan vlan 10
exit
vlan database
vlan 1,12,14
exit
voice vlan id 12
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
bonjour interface range vlan 1
hostname SG500X
ip name-server  192.168.10.35
!
interface vlan 1
 no ip address dhcp
!
interface vlan 10
 name VSC
!
interface vlan 12
 name Voice
!
interface vlan 14
 name Migration
!
interface gigabitethernet1/1/1 - 11
 switchport mode access
!
interface gigabitethernet1/1/12
 ip address 192.168.10.9 255.255.255.0
 switchport mode access
!

interface gigabitethernet1/1/13 - 22
 switchport mode access
!
interface gigabitethernet2/1/1 - 48
 switchport trunk allowed vlan add 12

!
exit
ip default-gateway 192.168.10.1 (Sonicwall X0 Interface IP Address)

**I'm not sure why but Interface 23 & 24 are not shown, they are Trunk uplinks to the Sonicwall.

**Web UI shows Interfaces 23 & 24 as:

	23	GE23	Trunk	10	Admit All	Enabled
	24	GE24	Trunk	10	Admit All	Enabled

Can someone help me understand what exactly is going on here?

Thanks

[DJX995]

You really should set the SG500 to layer 3 mode and let it be the default gateway for each of your networks.

The switch will route faster then then SonicWALL.

In this scenario, in order to allow the SonicWALL to pass traffic for the different networks, you need to create a routing rule.

Please refer to the attachments.

Here, we create a rule to allow the different networks to be routed back into the LAN.