Sunday, February 3, 2019

Need help routing to internal NAT on Router On a Stick network.

This is the logical topology in packet tracer

Master L3 switch conf

R1 conf

I have created a RoS solution for most of the network with R1(10.10.0.254) being the main distribution point (see logical topolgy). The problem is that each of the labnetworks are their own /24 networks and since they are located behind routers, they need routes.

I'm able to communicate to Master L3(10.10.0.253) from everywhere in the topology, including from the labnetworks(10.10.0.0/16). All of the VLANs in the RoS config is able to communicate to R1 and beyond to the internet, however if I'm coming from the routed 10.10.0.0/16 network I am unable to go beyond Master L3. This includes pings from Master L3 to R1 aswell. I've tried routes, sub-interfaces for native VLAN as well as using a different interface on both R1 and Master L3 (I thought it might have something to do with Master L3 being trunked), none of which worked. This leads me to believe that there is something with the Master L3 conf seeing as though changing interface on R1 didn't help.

Thankful for every bit of help I can get, please excuse me if the post was all over the place, english is not my first language.



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