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oliver_b
Beginner

Cisco SG300-28 PoE Layer 3 switching

Hi All.

 

I am having problems with configuring my layer 3 switch to reach the internet.

 

I wish to have the Inter-VLAN routing done at the SG300-28 and therefore configured my SG300-28 as the default gateway for all network endpoints in their respective VLANS. 

 

I have Layer 3 enabled on the switch.

 

I have no issue with communicating from one VLAN to another but cannot reach the Internet on other VLANS 60 & 80. 

 

I have configured a default route for the SG300-28 to my Cisco ASA 5506-X.

 

Please see further information below:

 

I have 2 devices:

 

Firewall / Router: Cisco ASA 5506-X with Firepower services

 

Switch: Cisco SG300-28 PoE Layer 3 Switch.

 

I have currently 3 VLANS as shown below:

 

VLAN 1: 192.168.16.0/24:

 

ASA: 192.168.16.1/24

SWITCH: 192.168.16.

 

VLAN 60: 172.10.60.0/24:

 

ASA: 172.10.60.1/24

SWITCH: 172.10.60.3/24

 

VLAN 80: 172.10.80.0/24:

 

ASA: 172.10.80.1/24

SWITCH: 172.10.80.3/24

 

Only my network on VLAN 1 can access the internet because the default route is set to 192.168.16.1 on the Cisco SG300.

 

I have posted my running config for both devices in a text file below. 

 

 

1 REPLY 1
Hitesh Vinzoda
Enthusiast

Hi there

Try removing the below routes on switch

ip route 172.10.60.0 /24 172.10.60.1
ip route 172.10.80.0 /24 172.10.80.1