Hello and thank you in advance to anyone able to direct/help me resolve the issue. I've been at this for days trying to learn and resolve the issue myself and conceded that I need some assistance on configuring VLAN on the CBS250. Basically, no device receives an IP address from the DHCP server when I change the Interface VLAN mode of the uplink port from Access to Trunk on the CBS250. When in Access mode, only VLAN 1 devices receives an IP address.
I am working with a Sophos XGS 126 firewall that is the DHCP servers. Sophos tech support reviewed the VLAN configurating on the firewall and confirmed all settings are correct. The tech says there is no traffic from the CBS250 on the uplink port to the firewall.
Sophos XGS 126
- Port 1 ( LAN1) - 10.9.1.0/24 - DHCP: 10.9.1.100-200
- Port 2 ( WAN)
- Port 3 (LAN2) & F2 (WiFi) - Bridged - 192.168.1.0/24 - DHCP:192.168.1.100-200
- VLAN10 - 192.168.10.1 - DHCP:192.168.10.100-200
- VLAN20 - 192.168.20.1 - DHCP: 192.168.20.100-200
- VLAN30 - 192.168.30.1 - DHCP: 192.168.30.100-200
- VLAN40 - 192.168.40.1 - DHCP: 192.168.40.100-200
- VLAN99 - 192.168.99.1 - DHCP: 192.168.99.100-200
CBS250-24PP-4G
- For testing purpose, all ports except 18 and 24 will remain as Access on the default VLAN 1
- Port 17 is my PC1 on VLAN 1
- Port 18 is my PC2 on VLAN 20
- Should Port 18 be Layer 2 or 3
- Port 24 is the set to Trunk to uplink to the Sophos XGS 126
- Should the Trunk be Layer 2 or 3
- IPv4 Interface Table
- VLAN 1 - 192.168.1.266
- VLAN 10 - 192.168.10.1
- VLAN 20 - 192.168.20.1
- VLAN 30 - 192.168.30.1
- VLAN 40 - 192.168.40.1
- VLAN 99 - 192.168.99.1
- Do I need to configure any other IPv4 functions? DHCP Relay? Static Routes?
