For the Mikrotik gurus... I've finally got fibre on.I've set my 2011iLS-IN up so the Ethernet port on the RB connected to the ONT is 1508MTU. I've done the same for the VLAN interface.I've set the PPPoE MTU and MRU to 1500.It took a while to start working, but eventually everything now works and I can do a ping test at 1472 (+28 ICMP overhead) MTU without fragmentation. All looks good.(I'm with Spark for fibre).My question though, do I need to set the MRRU on the Mikrotik when using an MTU of 1500?I was glad to see 1500 on PPPoE works on the Mikrotik. A mate reckoned they didn't support the 1500 MTU on PPPoE but it seems to be working fine and dandy.Do I need to set the Ethernet MTU to 1512 though to account for the VLAN tagging? Cheers,Gavin.
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