Upgrading From MX 100 to MX 250

[HeritageEagle]

My internet coming in is coax to RJ-45 to my MX 100. We just bought the MX 250. The MX 250 shows 2 SFP WAN Ports. Can I configure 1 of the RJ-45 as my WAN Port as we do not have fiber internet for the SFP Port. Please help!!

Thanks

Jim

[Owen]

No you need to use the labelled ports. You will need an SFP module but be careful with the speed of the SFP module and coax modem ethernet port.

[HeritageEagle]

Owen,

Thanks for the reply. What speed does my SFP need to be. My Spectrum Ethernet port is probably 1gbps. I did not know they made a SFP that took a RJ-45 connector.

[HeritageEagle]

Owen,

Would this work.

https://www.amazon.com/1000BASE-T-SFP-Transceiver-Supermicro-1-25G/dp/B099JHHB6C/ref=sr_1_2_sspa?dch...

Thanks Again

Jim

[Brash]

A @Owen advised, you will need to use the SFP ports for your WAN connection.

You essentially required a 1000 Base-T SFP.

The Meraki brand SFP is MA-SFP-1GB-TX.

You can find the full SFP datasheet here

The linked SFP should work (Meraki devices accept 3rd pary SFP's) but there's no guarantee on compatibility or reliability.

[GrantG]

I had these spares from another project, and they are currently working fine in MX250's running 15.44

https://www.amazon.com/dp/B08BP57TRJ

Obviously not "Supported" Meraki option, but real Meraki ones all seem to be backordered currently.