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New Member

SG300 inter-vlan routing troubles

Hey guys, having trouble getting routing to work across my vlans. Read this very helpful thread, but still have no luck.

Switch is in L3 mode

My firewall has internal ip of

DNS is

Vlan port settings:

Port VLAN Membership Table
InterfaceModeAdministrative VLANsOperational VLANsLAG







IPv4 Interface Table

InterfaceIP Address TypeIP AddressMaskStatus
VLAN 200Static192.168.20.62255.255.255.192Valid
VLAN 1DHCP192.168.61.2255.255.252.0Valid

IPv4 Static Routing Table

Destination IP PrefixPrefix LengthRoute TypeNext Hop Router IP AddressRoute OwnerMetricAdministrative distance Connected Connected

I have a windows8 host connected to port 1 of the sg300. It's configured with a static address of with gateway of

From the windows8 host, I can ping to, however, I cannot ping to or

Any help much appreciated!!!


SG300 inter-vlan routing troubles

Hi Jonathan, any reason you're suppernetting your router? You're using a /16 there and everything else is inside that scope... I'd recommend to normalize your addresses...

Please mark answered for helpful posts

-Tom Please mark answered for helpful posts
New Member

SG300 inter-vlan routing troubles

What would a better plan be? I will have 15x SG300-52s very soon, The goal was to limit broadcast scope to just the physical switch you're attached to.


SG300 inter-vlan routing troubles

Hi Jonathan, a pretty typical deployment would be to have a management vlan/subnet. For an argument purpose you can use vlan 1 as management and put it on a mask if that is enough to permit the 15 switches and all of the other network devices.

Next you can either have the router support the network traffic with a normal trunk and vlans tag or you can have the switches handle the network load. If the router supports subinterfaces or network subnets, that is fine, otherwise you'd simply need a static route to point to the switch SVI to be able to route the desired subnets.

As an example-

Management is the /28 on vlan 1 - -

Then you could create additional vlans basically as much as you want

vlan 2 - /24

vlan 3 - /24


To implement the switch configuration is basic something like this-

config t

int vlan 1

ip address /28

int vlan 2

ip address /24

int vlan 3

ip address /24


ip default-gateway

Then your router, if it doesn't support the subnets you could use static routes

something like

ip route

ip route

This should normalize the network and separate network traffic and give enough space for a management vlan.

Please mark answered for helpful posts

-Tom Please mark answered for helpful posts