Voice VLan ACL

[RyanHavlick26173]

Hello,

I have new VOIP phones which are automatically getting set to the Voice VLAN.  (VLAN 20).  My DNS and DHCP servers are on VLAN 1.  Right now I'm trying to configure my VOIP Phones via my desktop which is on VLAN 1, however the traffic isn't crossing.  My switch is setup in Layer 2, so I'm not sure if this can be done, or do I have to set a ACL or something to allow traffic to cross VLANS?

Does anyone know?

Thanks

[Reza Sharifi]

Turn on "ip routing" on your switch and test again.

HTH

[RyanHavlick26173]

Thanks, can you enable IP Routing when in L2 Mode or does that only work in L3?  (I'm not able to enable it in L2 mode)

Thanks

[Reza Sharifi]

Hi,

Not sure what mode switch you have as some switches are layer-2 only, but most newer switches like 3750, 3850, 3650, etc support l2/l3.

What is the switch model?

HTH 

[RyanHavlick26173]

We have a SG300-52.  So it has the ability to do L3 or L2.  Currently it's in L2 mode.  I have to actually switch this from the Web UI and not the CLI, so maybe I'm missing something.  Is there a way to enable Inter Routing via the Web UI?

Thanks

[balaji.bandi]

here is the GUI config for Layer 3 mode.

https://community.spiceworks.com/how_to/72048-enable-inter-vlan-routing-with-cisco-sg-series-smb-layer-3-switches

[Joseph W. Doherty]

To jump across VLANs, generally you need a "router". Once you have a router (or a device that can route - and it seems your switch might be capable of that) you need to have it, and your other host devices configured correctly. (Your "router" also may need additional configuration to support DHCP across different networks too.)