General • L3 HW Offloading CRS 326

Hi

I have a Mikrotik CRS326-24s+2q+rm cloud router switch that i setup with multiple VLANS 100-110
My client test PC on any vlans except for vLAN 109 (which is the vlan of the port connected to the modem) experience a cpu bottle neck due to inter-vlan routing and i am trying to fix that by enabling L3 HW offloading to leverage the switch chip 98DX8332 following the steps in this video https://www.youtube.com/watch?v=c2sAA6jMjCY&t=1439s

Problem
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When i enable L3 HW Offloading i can no longer ping google.com from the test pc but i still can from the switch terminal .
I have 1 bridge with all the ports added to it, a vlan tables of all the vlans defined on the bridge interface and corresponding vlan interfaces, vlan filtering enabled

Topology
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ISP Modem ( Not in Bridge Mode with DHCP Server)
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Connects to CRS326 on its port 4
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CRS326
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sfp-sfpplus24 is connected to modem with DHCP Client and static route configured on vlan 109
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PC Client
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connected on vlan 100 on sfp-sfpplus18
cant ping google.com when i enable L3 HW offloading and i can when i disable it
can ping from switch terminal when L3 hw offloading is enabled or disabled.

any help is appreciated

thank you

Statistics: Posted by malasfar — Sun Apr 20, 2025 3:52 pm

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