Re: [lwip-users] PPP proxy arp support

[address@hidden]

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...


Simon