Hi,
I have a cisco 2901 router acting as PPPoE + IPv6 + DHCPv6 Server, and a client connecting to it, negotiating PPP and IPv6 and acquiring IPv6 address in stateful mode with DHCPv6.
The problem starts when I am trying to ping the Cisco from the client - I have no ping.
When I use "debug ipv6 icmp" on the router, i see that in the backgrounf there are redirects happening between the virtual-template and the underlying loopback:
*Dec 28 18:19:14.711: ICMPv6: Received echo request, Src=2001:1::2545:39A2:57B0:8F7D, Dst=2001:1::100
*Dec 28 18:19:14.711: ICMPv6: Sent echo reply, Src=2001:1::100, Dst=2001:1::2545:39A2:57B0:8F7D
*Dec 28 18:19:14.715: ICMPv6: Sent Redirect, Src=FE80::1205:CAFF:FE2D:8D88, Dst=2001:1::100
*Dec 28 18:19:14.715: ICMPv6: Received Redirect, Src=FE80::1205:CAFF:FE2D:8D88, Dst=2001:1::100
*Dec 28 18:19:15.711: ICMPv6: Received echo request, Src=2001:1::2545:39A2:57B0:8F7D, Dst=2001:1::100
*Dec 28 18:19:15.711: ICMPv6: Sent echo reply, Src=2001:1::100, Dst=2001:1::2545:39A2:57B0:8F7D
*Dec 28 18:19:15.715: ICMPv6: Sent Redirect, Src=FE80::1205:CAFF:FE2D:8D88, Dst=2001:1::100
*Dec 28 18:19:15.715: ICMPv6: Received Redirect, Src=FE80::1205:CAFF:FE2D:8D88, Dst=2001:1::100
So there is no ICMPv6 reply sent to the client which connects through the virtual template.
router config is:
ipv6 unicast-routing
!
username Dima password 0 Dima
!
bba-group pppoe GROUPA
virtual-template 1
exit
!
!
ipv6 local pool pool1 2001:DB8:1200::/48 64
!
interface Loopback1
no ip address
ipv6 address 2001:DB8:2::1/40
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
pppoe enable group GROUPA
!
interface Virtual-Template1
description pppoe GROUPA
mtu 1492
no ip address
peer default ipv6 pool pool1
ipv6 unnumbered Loopback1
ipv6 nd other-config-flag
no ipv6 nd ra suppress
ipv6 nd ra interval 4
ppp authentication chap pap ms-chap callin
!
I tried disabling IPv6 redirects but nothing helps.
Anyone can suggest what can be the issue?
Thanks
