[cisco-bba] LNS IPv6 dual-stacked

[Richard Halfpenny]

Hi Alex,

You don't appear to be setting an unnumbered interface for address 
family ipv6.  Try adding the following to the virtual-template or supply 
via a RADIUS attribute:

ipv6 unnumbered Loopback3

Rich.

-- 
Network Operations
Exa Networks Ltd :: AS30740
richard.halfpenny at exa-networks.co.uk
 
Alexander Fossa wrote:
> Hi,
>
> We're looking to deploy IPv6 across our DSL subscriber base, we are almost there with the configuration but are having issues with 'first hop routing'.
>
> An Example traceroute:
>
> AlexMacBook:~ alexfossa$ traceroute6 www.he.net
> traceroute6 to he.net (2001:470:0:76::2) from 2a00:1990:1:1:226:bbff:fe03:c6a7, 64 hops max, 12 byte packets
>  1  2a00:1990:1:1::1  1.886 ms  1.729 ms  1.344 ms
>  2  * * *
>  3  xe-2-3-0-103.lon14.ip6.tinet.net  17.873 ms  15.415 ms  15.625 ms
>  4  xe-1-1-0.lon10.ip6.tinet.net  15.301 ms  15.124 ms  16.474 ms
>  5  10gigabitethernet1-1.core1.lon1.he.net  20.605 ms  23.679 ms  24.902 ms
>  6  10gigabitethernet2-3.core1.ny4.ipv6.he.net  83.626 ms  93.947 ms
>     10gigabitethernet4-4.core1.nyc4.he.net  83.690 ms
>  7  10gigabitethernet5-3.core1.lax1.he.net  150.774 ms  147.256 ms  156.679 ms
>  8  10gigabitethernet1-3.core1.pao1.ipv6.he.net  159.380 ms  152.882 ms  152.470 ms
>  9  10gigabitethernet1-2.core1.fmt1.ipv6.he.net  155.702 ms  155.004 ms  168.266 ms
>
>
> 1st hop is my Cisco ADSL router here, 2nd should be the Loopback interface referenced to in the Virtual-template.
>
> Here is my Virtual-Template and Loopback config:
>
> interface Virtual-Template3
>  mtu 1502
>  ip unnumbered Loopback3
>  ip mtu 1500
>  ip tcp adjust-mss 1450
>  no logging event link-status
>  ipv6 enable
>  ipv6 verify unicast reverse-path
>  ipv6 ospf 1 area 0
>  no snmp trap link-status
>  no peer default ip address
>  ppp max-failure 1
>  ppp mtu adaptive
>  ppp authentication chap
>  ppp ipcp address required
>  ppp link reorders
>  ppp multilink
>  ppp multilink fragment disable
>  ppp multilink endpoint hostname
>
>
> interface Loopback3
>  ip address 77.246.20.33 255.255.255.255
>  ipv6 address 2A00:1990:FEED:1::1/128
>  ipv6 enable
>  ipv6 ospf 1 area 0
> end
>
> Any help gratefully received.
>
> Many Thanks,
>
> Alex
>
>
>
>