Sorry if the title is click-bait, but my scenario isn't exactly as it might sound. I put it here because it is "other" and it is "wireless" but the question is more to do with "plumbing" of private LTE wireless over Cisco. Original use case is for eNBs to be connected locally at L2. New use case is to extend eNBs to remote office, without having to place a core at each office.
High-level scenario overview:
Remote eNB (pico) in PnP mode looking for it's PnP server to download it's SCF (config file). PnP server is an IXRe across an L3 WAN at HQ. Pico boots up looking for an IP and for PnP server IP - 192.168.251.204. Local switch/router needs to assign pico a temp IP with option-43 to PnP server. ISE will possibly be used to assign DACL based on pico's OUI to start the (dynamic) route to HQ.
High-level topology:
Pico---> switch--->FW--->router-----(L3 cloud)<-----router<---FW<---switch<---IXRe(core)
Results:
The IXRe will send the pico back it's (pre-configured, cloud created) software config file that was pushed to core. The SCF will change the pico's IP to a new number (192.168.96.xxx) in-scope with other radios attached to this core. Then the pico will be looking for 192.168.96.1 (still the IXRe) to establish its permanent (S1) connection.
Looking for the best LAN/WAN config to do this. Best meaning, can be deployed on most Cisco devices pretty flexibly and without tunnels.
The Cisco LAN/WAN gear will vary of the latest/greatest Cisco gear. FWs are Palo.
Thanks in advance!
