[cisco-bba] LNS IPv6 dual-stacked

[Alexander Fossa]

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



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