I’m running OpenWrt on a Pi4. The LAN port is feeding a TP-Link TL-WR740N 150Mbps WiFi Router. The Pi4B is handling my VPN service. So this gives me a WiFi access and 4 Ethernet ports that goes through the VPN. A handy setup for me.
It is possible to install OpenWrt version 18.06 only directly on the TP-Link router, for 23.05 would not be compatible according to the Table of Hardware.
The Question : Which configuration is most advantageous
A) OpenWrt ver.23.05 on Pi4 and TP-Link TL-WR740N
or
B) OpenWrt ver.18.06 directly on TP-Link TL-WR740N
Would there be a major advantage for solution A .vs. B ?
Considering the advantage for Solution B would then free my Pi4 for other projects.
Thanks
Possible: yes. Advisable: no. 18.06 is half a decade old, not maintained anymore, and should be considered insecure. Running it on an internal device (a Wifi access point, or a print server, or something along those lines) may be okay but It really, really should not be used on an edge router anymore.
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I've built an updated 19.07 for AP only usage (your case) from a maintained fork (librecmc) - I suggest to use it [19.07 ath79 final] Librecmc for 4/32 tiny devices
but you should really upgrade your wifi AP asap - I think a 16/128 device can be had for as low as 10$ used nowadays
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The Pi is excellent and will outperform anything but an x86.
Your AP needs updated WPA2 and should have WPA3. Spend accordingly.
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