2 Nov
2013
2 Nov
'13
7:16 a.m.
Mark Andrews wrote:
Over the cable modem?
Yes.
OK.
The cable modem is the CPE, which accept the DHCP packet to it.
A cable modem both accepts DHCP packets (for management of the modem) and passes DHCP packets through to the customer device.
Even if the CPE does so, which means there is no NAT, the key to update rDNS must, naturally, be contained only in DHCP reply to the CPE. And, I'm afraid your draft assumes that the CPE behaves as a DHCP server for local hosts, which means the CPE is responsible for rDNS registration. Masataka Ohta