So I've got a DNOS 6 Dell Switch. Basically Cisco/FTOS command line. The use case is I have a police department security center that monitors video feeds from around the city.
I've got a Comcast gigabit modem plugged in to Port 1. This connection is dedicated to this office and not on our LAN. The purpose of this connection is to be able to handle the high amount of traffic and not interfere with the rest of our city operations. It is set up with an IP address using vlan 10.
I have created a vlan "99" and set up the DHCP server to hand out .99 addresses to all the other ports.
The idea here is to route all traffic out this dedicated Comcast connection EXCEPT the IPs that need internal resources i.e. our internal cameras and DVRs. The default route is set to point to the Comcast gateway and the other routes are in place to access internal subnets going over the fiber link that goes to our core switch on our LAN.
EVERYTHING works except internet access on devices on the .99 network. Using ping on the switch it is able to get to the internet (directly through vlan 10) but if I ping using source vlan 99 it doesn't work. Traceroute and ping dies also. Oddly on the test laptop when I ping NFL.com or something else it shows an IP as if it's getting DNS but doesn't actually ping. Also despite not using the damn thing to go out to the web, devices on the 99 network can access the Comcast gateway via the web browser BUT devices on the 99 cannot ping or traceroute the gateway.
WHAT THE HELL?
Is this a config issue or a issue with the Comcast modem not being able to communicate with my 99 network?
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