SG300 inter-VLAN routing and MAC address changes in incoming packets

[alexandrfedchenko]

Hello

I have SG300-20 working in Layer3 mode

VLAN1 is not used

Internet gateway is in VLAN211

Clients are in other VLANs

Switch is default gateway for clients and itself has internet gateway as default route.

MAC address of switch is XX:XX:XX:XX:XX:63

When client sends trafic to Internet destination MAC address in outgoing packets is XX:XX:XX:XX:XX:63

But in incoming packets source MAC address is XX:XX:XX:XX:XX:69

Why does it change? And how can I setup switch to use only XX:XX:XX:XX:XX:63 MAC address?

[candritzky]

Hi Tom,

I can't open the bug you mentioned. It tells me I have "Insufficient Permissions to View Bug".

Yes, this issue is not seen when we use the SG300 as a simple layer-2 switch. But we want to use the layer-3 routing features between two (or more) VLANs.

Chris