Routing on switch

[Silas1066]

OK, I am having an issue figuring this out

I have a MX connected to a MS350 switch, and since the trunk port was getting errors, I made the connection an access port instead of a trunk.

So the MX has a VLAN 101 interface 192.168.101.2 /24 connected to 1 on the switch, which is in VLAN 101 and configured with a static address 192.168.101.10 /24.

All that works fine, as the switch talks through the MX to the cloud, etc.

Problem is, I now want to create another subnet/vlan/SVI on the switch for my wireless network, and route to the Internet. Is this even possible with the current setup? What is the workaround?

[BrechtSchamp]

Both the MX and the MS350 can route so you could make both work. The trunk should've worked too.

For the switch L3 config refer to this link :

https://documentation.meraki.com/MS/Layer_3_Switching/MS_Layer_3_Switching_Overview

[PhilipDAth]

It sounds like your MX is the default gateway.  The simplest way is to just create another VLAN on the MX - and convert the access port on the switch to a trunk port again - and deal with whatever the original issue was.

Leaving problems unresolved will probably just coe back to bite you later.  🙂

[Silas1066]

I managed to figure it out.

The uplink is basically its own physical interface in a kind of VRF. It can be configured in the same network as a SVI you create on the switch, just so long as the connection is changed to a trunk.

So I created VLAN 101 and assigned the uplink to 192.168.101.10 /24

I then created a SVI interface 101 on the switch with an address of 192.168.101.4 , with a default gateway of 192.168.101.2 (the MX)

A little counter-intuitive, because you wouldn't be able to do that on a Catalyst L3 switch.

But it appears to be working fine now

[PhilipDAth]

Tye MS350 is just acting as a layer 2 switch - you don't need to create any SVIs on it at all.

[Uberseehandel]

---

@Silas1066 wrote:

So I created VLAN 101 and assigned the uplink to 192.168.101.10 /24

I then created a SVI interface 101 on the switch with an address of 192.168.101.4 , with a default gateway of 192.168.101.2 (the MX)

A little counter-intuitive,   . . .

---

It is counter intuitive, but not for the reason you gave. 101 is reserved in many networks for a good reason. Think about it, hint, Big Brother is watching . . .