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Cisco asa 5505: No traffic lan to wan with IPv6

Jose Pena
Level 1
Level 1

Hello everybody,

I have a Cisco ASA 5505, public ipv6 in outside interface, private ipv6 in LAN, from router I can ping any ipv6 in Internet and ping my LAN ipv6. Traffic doesn't go through router.

This is my configuration.

interface Vlan1
 nameif inside
 security-level 100
 ip address PRIV-Saturn1
 ipv6 address fc00::1/7
 ipv6 enable
interface Vlan2
 nameif outside
 security-level 0
 ip address PUBLIC26
 ipv6 address xxxx:yyyy:67:36::2/64
 ipv6 enable
 ipv6 nd suppress-ra

access-list Dynamic_Filter_ACL extended permit tcp any6 any6

ipv6 route outside ::/0 xxx:yyyy:67:36::1


Am I omitting anything?

Thanks in advance for the help.


Jos P

1 Reply 1

Marvin Rhoads
Hall of Fame
Hall of Fame

Since you're using IPv6 private addressing (fc00::) on the inside, you need a dynamic NAT entry to translate your private IPv6 addresses to a public one.

Alternatively, you could just use a subnet of your registered IPv6 block for the inside network and not worry about NAT.

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