ASR 1000 ISG IPv6 l2-connected

acitycisco · ‎11-23-2016

Hello.

Here is interface config:

interface TenGigabitEthernet0/1/0.199
 encapsulation dot1Q 199
 ip address 100.65.0.1 255.255.0.0
 ip nat inside
 ipv6 address ISP 0:0:0:199::/64 eui-64
 ipv6 enable
 service-policy type control Captive
 ip subscriber l2-connected
  initiator unclassified mac-address

Problem is that there is no NA as default router is received on client host. So it cannot initiate connection to Internet and trigger ISG session.

Instead it gets strange ISP:ISP:2::/60 RA, while there is no such route on the router, but ISP:ISP:2::/48 to Null0.
My platform is ASR 1002-X, asr1002x-universalk9.03.13.02.S.154-3.S2-ext.SPA.bin

If i remove "ip subscriber l2-connected" then it starts working and client receives "neighbor advertisement, length 32, tgt is ISP:ISP:0:199:8af0:31ff:feac:8c10, Flags [router, override]"

What do i do wrong?

lukasbulka3 · ‎04-23-2018

Had the same problem.

Prerequisites for Dual-Stack Support for Simple IP Subscriber Sessions:

Either the IPv6 pool has to be configured in the ISG or the framed IPv6 prefix needs to be downloaded from RADIUS.

Radius atribute is: Framed-IPv6-Prefix = ...

Best Regards