Hello, i would like to get some help on how to make a cisco router supplies addresses to different subnets connected to fastinternet interfaces using "dhcpv6"?
here is my attempt, which is not working;
en conf t
ipv6 local pool VLAN10-pool AAAA:1::/48 64 ipv6 local pool VLAN20-pool AAAA:2::/48 64
ipv6 dhcp pool DHCPv6POOL prefix-delegation pool VLAN10-pool prefix-delegation AAAA:1::23F6:33BA/64 00030001000E84244E70 ipv6 dhcp pool DHCPv6POOL2 prefix-delegation pool VLAN20-pool prefix-delegation AAAA:2::23F6:33BA/64 00030001000E84244E71
interface FastEthernet0/0 no sh no ip address ipv6 enable ipv6 address FE80::1 link-local ipv6 address AAAA:1::1/64 ipv6 nd other-config-flag ipv6 dhcp server DHCPv6POOL
interface FastEthernet0/1 no sh no ip address ipv6 enable ipv6 address FE80::2 link-local ipv6 address AAAA:2::1/64 ipv6 nd other-config-flag ipv6 dhcp server DHCPv6POOL2 end
Indeed Kris after a hard time dealing with Packet Tracer discrepancies and instability, the router was only able to assign IPv6 addresses from a single pool independently of the presence of any other pools.
It was even using the same pool after completely erasing it from the configuration and rebooting the router. Obviously it doesn't support multiple instances tied to multiple pools.
In the same time we shouldn't expect Packet Tracer to behave 100% like IOS code because it's not an IOS, it emulates its behavior.
Packet Tracer is an excellent tool to get acquaintance with some technologies and features with just the software as an investment, further you will have to switch to tools like GNS3, and better to real equipments.
Having said that, it looks like the problem is completely out of the scope of Packet Tracer, because even IOS < 12.4(24)T do not support IA (Identity Association) used by DHCPv6 clients to query and manage a particular type of IPv6 addresses (Temporary or Non-Temporary) as shown below on IOS DHCPv6 server :
DHCPv6 server router, IOS 12.4(15)T8:
And on Linux dibbler-client:
The only way to overcome this is to use an IOS supporting IA_NA (>12.4(24) T) as I mentioned in a previous post with different implementation commands of DHCPv6 server using “address-prefix” under “ipv6 DHCP pool”
Here is the configuration I deployed using IOS 12.4(24)T as DHCPv6 server, and I mixed 3 different clients :
- IOS 12.4(24)T as DHCPv6 server – supporting interface command « ipv6 address dhcp »
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