Re: PPPoE with IPv6

The problem we are facing is that the 'global' address of the virtual-
template is not copied down to the virtual-access interface. Could you
issue a show ip interface brief and see if that global prefix is in
the routing table. Because I think it now works with the link-local
address on R2 and pinging the R1 DHCP address through PPP /32 neighbor-
route.

--
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On 28 sep 2009, at 19:02, Rich Collins wrote:
> Hi,
>
> I did get a ipv6 dhcp version of this to work - I referenced this
> link: https://www.cisco.com/en/US/products/ps6553/products_white_paper09186a00801e199d.shtml
>
> Perhaps there is a way to refine this configuration but it did work  
> for me.
>
>
>
> R1#sh ver
> Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version
> 12.4(15)T7, RELEASE SOFTWARE (fc3)
>
> R1#sh run
> Building configuration...
>
> Current configuration : 2540 bytes
> !
> version 12.4
> service timestamps debug datetime msec
> service timestamps log datetime msec
> no service password-encryption
> !
> hostname R1
> !
> no ip domain lookup
> ip multicast-routing
> ipv6 unicast-routing
> !
> !
> vpdn enable
> !
> !
> !
> !
> bba-group pppoe global
> !
> !
> interface FastEthernet0/0
> no ip address
> speed auto
> full-duplex
> ipv6 address DH-PREFIX 0:0:0:1::/64 eui-64
> ipv6 enable
> pppoe enable group global
> pppoe-client dial-pool-number 1
> no clns route-cache
> !
> !
> interface Dialer1
> no ip address
> ip mtu 1492
> ip pim sparse-mode
> encapsulation ppp
> dialer pool 1
> dialer idle-timeout 0
> dialer persistent
> ipv6 address autoconfig
> no ipv6 nd ra suppress
> ipv6 dhcp client pd DH-PREFIX
> no peer neighbor-route
> !
> ip forward-protocol nd
> !
> !
> ipv6 route ::/0 Dialer1
> !
>
> R1#
>
>
> R2#
> R2#sh run
> Building configuration...
>
> Current configuration : 3342 bytes
> !
> version 12.4
> !
> hostname R2
> !
> aaa session-id common
> memory-size iomem 5
> ip cef
> !
> !
> no ip domain lookup
> ipv6 unicast-routing
> ipv6 cef
> ipv6 dhcp pool foo
> prefix-delegation 2001:7:7::/48 0003000100055FAF2C08
> prefix-delegation 2001:8:8::/48 0003000100055FAC1808
> prefix-delegation 2001:8:9::/48 000E0001
> prefix-delegation 2001:8:A::/48 00030001C20020310000
> !
> !
> !
> !
> bba-group pppoe global
> virtual-template 1
> !
> !
> interface Loopback0
> ipv6 address 2001:2:2:2::2/64
> ipv6 enable
> !
> interface FastEthernet2/0
> no ip address
> speed auto
> full-duplex
> ipv6 enable
> pppoe enable group global
> !
> interface Virtual-Template1
> no ip address
> ipv6 address 2001:8:A::1/48
> ipv6 enable
> no ipv6 nd ra suppress
> ipv6 dhcp server foo
> !
> !
> no ip forward-protocol nd
>
> R2#
>
>
>
>
> R1#sh pppoe session interface fastEthernet 0/0
>     1 client session
>
> Uniq ID  PPPoE  RemMAC          Port                    VT   
> VA         State
>           SID  LocMAC                                      VA-st
>    N/A     19  c201.2031.0020  Fa0/0                  Di1   
> Vi2        UP
>                c200.2031.0000                              UP
> R1#
>
> R2#sh ipv6 dhcp binding
> Client: FE80::C000:20FF:FE31:0
>  DUID: 00030001C20020310000
>  Interface : Virtual-Access2.1
>  IA PD: IA ID 0x000E0001, T1 302400, T2 483840
>    Prefix: 2001:8:A::/48
>            preferred lifetime 604800, valid lifetime 2592000
>            expires at Mar 31 2002 01:36 AM (2591347 seconds)
> R2#
>
>
>
> R1#ping ipv6 2001:2:2:2::2
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001:2:2:2::2, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/16  
> ms
> R1#
>
>
> Hints:
>
> R1#  clear pppoe all
> R1#clear ipv6 dhcp client dialer 1  (to flush the dhcp address 
> necessary even after clearing pppoe session)
>
>
> R1#sh ipv6 dhcp interface
> Dialer1 is in client mode
>  State is OPEN
>  Renew will be sent in 3d11h
>  List of known servers:
>    Reachable via address: FE80::C001:20FF:FE31:0
>
>    DUID: 00030001C20120310000 >>>>>>use this for dhcp pool in  
> server<<<<<<
>
>    Preference: 0
>    Configuration parameters:
>      IA PD: IA ID 0x000E0001, T1 302400, T2 483840
>        Prefix: 2001:8:A::/48
>                preferred lifetime 604800, valid lifetime 2592000
>                expires at Mar 31 2002 01:36 AM (2591811 seconds)
>      Information refresh time: 0
>  Prefix name: DH-PREFIX
>  Rapid-Commit: disabled
> R1#
>
>
>
> -Rich
>
> On Sat, Sep 26, 2009 at 6:41 PM, Joe Astorino  
> <jastorino_at_ipexpert.com> wrote:
>> Did anybody ever get IPv6 to function properly over a PPPoE link?   
>> If so,
>> can you please share ?
>>
>> On Wed, Sep 2, 2009 at 2:10 AM, Joe Astorino  
>> <jastorino_at_ipexpert.com> wrote:
>>
>>> Has anybody successfully set this up?
>>>
>>> Basically, on the PPPoE server side, when I assign my ipv6 address  
>>> to the
>>> virtual-template interface you can see it , but the router never  
>>> adds a
>>> route for it in the routing table.  On the client end of the PPPoE  
>>> things
>>> seem to work fine using the dialer interface.  Interestingly  
>>> enough, I see
>>> IPv6CP negotiating OK in the debugs, and I can actually see the  
>>> link-local
>>> address of the other side in "show ipv6 neighbor" but no ping to  
>>> the other
>>> side global address.  I've even tried ipv6 unnumbered with no luck.
>>>
>>> Also, it works totally fine for IPv4...I have enabled ipv6 unicast- 
>>> routing
>>> of course, and also ipv6 cef just in case.  I am running 12.4(24) 
>>> T1 and have
>>> also tried this on 12.4(3a)
>>>
>>> basically I have below:
>>>
>>> Server
>>> ----------
>>>
>>> vpdn enable
>>> bba-group pppoe global
>>> virtual-template 1
>>>
>>> interface FastEthernet0/0
>>> no ip address
>>> duplex auto
>>> speed auto
>>> pppoe enable group global
>>>
>>> interface Virtual-Template1
>>> mtu 1492
>>> ip address 141.41.67.6 255.255.255.0
>>> ipv6 address 2001:0:0:67::6/64
>>> ipv6 enable
>>>
>>>
>>> Client
>>> --------
>>>
>>> interface FastEthernet0/0
>>> no ip address
>>> duplex auto
>>> speed auto
>>> pppoe enable group global
>>> pppoe-client dial-pool-number 1
>>>
>>> interface Dialer1
>>> mtu 1492
>>> ip address dhcp
>>> encapsulation ppp
>>> dialer pool 1
>>> dialer idle-timeout 0
>>> dialer persistent
>>> ipv6 address FE80::7 link-local
>>> ipv6 address 2001:0:0:67::7/64
>>> ipv6 enable
>>>
>>>
>>> so check this out...
>>>
>>> R6(config-if)#do sh run int virtual-template1
>>> Building configuration...
>>>
>>> Current configuration : 128 bytes
>>> !
>>> interface Virtual-Template1
>>> mtu 1492
>>> ip address 141.41.67.6 255.255.255.0
>>> ipv6 address 2001:0:0:67::6/64
>>> ipv6 enable
>>> end
>>>
>>> R6(config-if)#do sh ipv6 route
>>> IPv6 Routing Table - Default - 10 entries
>>> Codes: C - Connected, L - Local, S - Static, U - Per-user Static  
>>> route
>>>       B - BGP, M - MIPv6, R - RIP, I1 - ISIS L1
>>>       I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D -  
>>> EIGRP
>>>       EX - EIGRP external
>>>       O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 -  
>>> OSPF ext 2
>>>       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
>>> R   2001::2/128 [120/2]
>>>     via FE80::2, Serial0/1/0
>>> R   2001::5/128 [120/3]
>>>     via FE80::2, Serial0/1/0
>>> LC  2001::6/128 [0/0]
>>>     via Loopback6, receive
>>> C   2001::256:0/125 [0/0]
>>>     via Serial0/1/0, directly connected
>>> L   2001::256:6/128 [0/0]
>>>     via Serial0/1/0, receive
>>> C   2001:0:0:69::/64 [0/0]
>>>     via Serial0/2/0, directly connected
>>> L   2001:0:0:69::6/128 [0/0]
>>>     via Serial0/2/0, receive
>>> C   2001:0:0:70::/64 [0/0]
>>>     via Serial0/2/1, directly connected
>>> L   2001:0:0:70::6/128 [0/0]
>>>     via Serial0/2/1, receive
>>> L   FF00::/8 [0/0]
>>>     via Null0, receive
>>>
>>> R6(config-if)#do ping 2001:0:0:67::7
>>>
>>> Type escape sequence to abort.
>>> Sending 5, 100-byte ICMP Echos to 2001:0:0:67::7, timeout is 2  
>>> seconds:
>>>
>>> % No valid route for destination
>>> Success rate is 0 percent (0/1)
>>>
>>> --
>>> Regards,
>>>
>>> Joe Astorino - CCIE #24347 R&S
>>> Technical Instructor - IPexpert, Inc.
>>> Cell: +1.586.212.6107
>>> Fax: +1.810.454.0130
>>> Mailto:  jastorino_at_ipexpert.com
>>>
>>
>>
>>
>> --
>> Regards,
>>
>> Joe Astorino - CCIE #24347 R&S
>> Technical Instructor - IPexpert, Inc.
>> Cell: +1.586.212.6107
>> Fax: +1.810.454.0130
>> Mailto:  jastorino_at_ipexpert.com
>>
>>
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>>
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