Re: [B.A.T.M.A.N.] [PATCHv3 2/6] batman-adv: speed up dat by snooping received ip traffic

Not sure whether it is necessary, or whether there is a check somewhere later within DAT. But should we exclude some iphdr->saddr or ethhdr->h_source addresses? For instance a DHCPDISCOVER usually has a zero-ip address.

And speaking of DHCP, do you (or anyone else) know, whether a dhcp-server (or its kernel) sends an ARP request before sending a unicast DHCPOFFER? Or do dhcp-servers usually craft DHCPOFFERs in userspace within their daemon including the ethernet header?

If the latter is the case, maybe we could/should dat-snoop the ethernet+IP destination of such DHCPOFFERs in interface_rx(), too?