Thursday, November 1, 2018

Layer 3 Switching help?

Hi, so I apologize at first that I'm new to this type of networking that I'm having to setup and could use some help:

I have a Cisco SG500X-24 switch that has 3 vlans (1, 5, 10). I have an IP address (10.100.0.9) setup for the 5 vlan for management, and is untagged to access port 24, but tagged on fiber port 2 (trunk port) to same type of switch on second floor. The 10 vlan does not have an IP addresses, and it's untagged for ports 1-23, and fiber port 1 and tagged on fiber port 2 (trunk port). The 1 vlan is not on any port.

From my ISP, (which is connected to fiber port 1), I received a "Layer 3 Subnet" which consists of 50.0.0.40/30 (not real subnet) and has layer 3 ip of 50.0.0.42 with a default gateway of 50.0.0.41. This is the ISP's gateway. Also, I was given a /25 subnet, of 50.0.0.128/25 but no gateway. Just a block of IP's.

Each port on the switch 1-23 (in the 10 vlan) needs to be able to use one of the /25's, however, I'm not sure what to add where to get this routing to work.

Any suggestions?



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