buddika (BSc, A+, N+, CCENT, CCNA(R&amp;S)) escribió:
1. What is the difference between helper-address & relay destination in DHCP?
is that protocol base difference?
for IPv4 version--> (ip helper-address)
for IPv6 version--> (ipv6 dhcp relay destination)
Yes. For IPv4 ("ip helper-address" command) and for IPv6 ("ipv6 dhcp relay destination" command). The function is basically the same, but in IPv6 can see more interesting details. Here is a case of CLN that could help you:
2. Why static binding is not possible in DHCPv6?
Yes. It's not possible manual binding on DHCPv6, because in IPv6 we have many options of assigment (Stateful/Stateless [with SLAAC]).
Also you can configure DHCPv6 using Prefix Delegation Feature. Here are links that could help you: