Re: DHCP: ARP issue, FR2.x vs FR 3.x

Fajar A. Nugraha wrote:

First, while migrating my old test config, I forgot to uncomment mac2ip, which means there are no DHCP-Your-IP-Address attribute. When it receive dhcp discover packet, the server died with .. I don't think it should do that.

Nope. I've pushed a fix.

Second, there's still no packet sent to the client. And there's nothing in the debug log about updating ARP cache. FR debug log (starting from dhcp section):

It doesn't print a debug message, but you can add one. See src/main/dhcpd.c, look for "arp".

If I manually force add arp entry using "arp -i dummy1 -s 172.16.101.101 08:00:27:a2:13:b9", then it works. Looks like there's still problem in arp cache update code.

I don't have time to test this myself. Alan DeKok.