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HE and DHCPv6

Started by Nate K, January 18, 2020, 06:34:41 PM

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Nate K

What is the best way to configure DHCPv6 on Cisco IOS.
I need help setting up DHCP pools
DHCP and router broadcasting on an interface
and specifying how it is to route.

I believe I have my zone-security configured properly. I just need help figuring out how to configure it all properly.

interface Tunnel0
description Hurricane Electric IPv6 Tunnel Broker
no ip address
zone-member security OUTSIDE
ipv6 address 2001:470:XXX8:AB::2/64
ipv6 enable
tunnel source GigabitEthernet0/0
tunnel mode ipv6ip
tunnel destination 66.XXX.XXX.XXX

interface GigabitEthernet0/1.20
encapsulation dot1Q 20
ip address
ip nat inside
ip virtual-reassembly in
zone-member security vlan20
no cdp enable
ipv6 address 2001:470:XXX9:AB:2000::1/68
ipv6 enable
ipv6 nd prefix 2001:470:XXX9:AB:2000::/68 14400 14400 no-autoconfig
ipv6 nd managed-config-flag
ipv6 dhcp server vlan20

ipv6 dhcp pool vlan20
address prefix 2001:470:XXX9:AB:2000::/68
dns-server 2620:119:35::35
dns-server 2620:119:53::53

ipv6 access-list ip620-TO-OUTSIDE
permit ipv6 2001:470:XXX9:AB:2000::/68 any
control-plane host

ipv6 route ::/0 Tunnel0

I can ping ipv6 and traceroute ipv6 from the router. I get ipv6 addresses on my hosts and my hosts can ping eachother. but no route to the internet.

Nate K

Update. I can also ping my tunnel ip from my dhcp hosts.

Nate K

NASA#show ipv6 cef switching stati                                                                                                   
       Reason                          Drop       Punt  Punt2Host                                                                     
RP LES Packet destined for us             0       7398          0                                                                     
RP LES Bad hop, TTL expired               0        244          0                                                                     
RP LES Features                       47099          0          0                                                                     
RP LES Link-local source address          1       1612          0                                                                     
RP LES Neighbor resolution req           39          0          0                                                                     
RP LES Total                          47139       9254          0

still struggling


Do you have "ipv6 unicast routing" enabled on your router?  (or something close to that)

Nate K

Quote from: cholzhauer on January 20, 2020, 06:36:42 AM
Do you have "ipv6 unicast routing" enabled on your router?  (or something close to that)
"ipv6 unicast-routing"

Nate K