On 10.10.2018 02:24, Bob Jones wrote:
[..] I was thinking of using PPP proxy arp support on MCU #1, but noticed that it was commented out of the lwip ppp implementation in 2015 (commit hash 99bcce78...). The commit message simply reads "PPP, IPCP, removed proxy ARP support".
Isn't proxy ARP support only really valid when we are a PPP server? That wasn't working at that time.
Was curious to know if this is something that, if the surrounding `#define`s were removed, would likely just work,
No, the ARP layer does not have support for this. You'd have to add at least that to make it work.
or if there was some underlying implementation issue that led to its removal.
If I remember correctly, Sylvain started to make things work that he needed when porting the updated PPP sources. It doesn't necessarily mean there was an issue, but I guess he didn't want to implement proxy ARP support in the lwIP ARP layer unless he needed it...
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