EIGRP IPv6 Configuration

Hoping someone can help me out here. We have 2-6500 running VSS and also running VRF Lite. The IOS version we are running is: s72033-advipservicesk9_wan-mz.122-33.SXJ2. We have recently enabled IPv6 and I am trying to enable "IPv6 router eigrp x" which works fine but when i try to enable "IPv6 eigrp x" on a Vlan I recieved an unsupported error. Example below:
ipv6 router eigrp 1
eigrp router-id 1.1.1.1
no shut
Vlan100
vrf forwarding DMZ
ip address 192.1168.1.1 255.255.252.0
ipv6 address 2444:4444:4444:4444::1/56
ipv6 enable
end
When i enter the "ipv6 eigrp 1" on the the SVI it errors out. Any idea's?
Thanks!

To use EIGRP as a PE-CE protocol for IPv6 you need to use the named EIGRP configuration. Please check out the info at the following URL -
http://www.cisco.com/en/US/docs/ios-xml/ios/iproute_eigrp/configuration/15-sy/ire-ip6-vrf-lte.html. Note here that this feature is not supported in the release that you mention. You will need to upgrade to 15.1(1)SY which is the first release to support both the Sup 2T and Sup 720.
hth,
-jim

Similar Messages

EIGRP IPv6 and VLAN interfaces

We've found that we have to set static link local IPs when two routers might peer over multiple VLAN interfaces.
The issue is that the routers, 6500s with sup720s, utilize the same autoconfig'd link local address on each VLAN interface.   EIGRP IPv6 refuses to peer with the other router on multple VLANs when the link local are the same.
Anyone else encounter this?   Did we miss a config option that would force unique link locals on different VLANs interfaces?
Because of this issue, we've made it our best practice to configure static link local for all inter-router transits.

HI Gary,
I had a setup with SU720 on 2 7600s and I am able to enable the neighborship without any issues. I didnt configure static link local as below,
Ryanair#show ipv6 int vlan 500 | inc FE
IPv6 is enabled, link-local address is FE80::21C:B0FF:FEB5:6D00
Ryanair#sho ipv6 int vlan 501 | inc FE
IPv6 is enabled, link-local address is FE80::21C:B0FF:FEB5:6D00
Ryanair#show ipv6 eigrp nei
EIGRP-IPv6 neighbors for process 100
H   Address                 Interface       Hold Uptime   SRTT   RTO Q Seq
                                            (sec)         (ms)       Cnt Num
1   Link-local address:     Vl501             11 00:15:51 816 4896 0 13
    FE80::222:55FF:FE17:25C0
0   Link-local address:     Vl500             11 00:17:14    1   200 0 12
    FE80::222:55FF:FE17:25C0
Ryanair#
Can you let us know the version on oth the devices?.
Regards,
Nagendra

SGE2010 and IPv6 configuration

Dear sirs,
I own a /48 ipv6 address block , and i'd like to cut it in /64 blocks with a SGE2010 switch .
Layer 3 and IPv4 configuration works well : IP configuration on vlans and IP routing between vlans.
MachineA (172.18.10.200) <====> (172.18.10.253/24) switch (172.18.255.1/24) <=====> MachineB (172.18.255.100)
I'd like to do the same configuration in ipv6 : but i experience problems :
When i want to add an ipv6 interface, it doesn't add it, but replaces the already defined ipv6 interface.
I first thought of a problem with web administration interface , so i tried to define a configuration file like this :
vlan database
vlan 2,255
default-vlan vlan 10
exit
interface ethernet 1/g6
switchport access vlan 2
exit
interface ethernet 1/g47
switchport access vlan 255
exit
interface vlan 2
name Wan
ip address 172.18.1.253 255.255.255.0
ipv6 enable
ipv6 nd dad attempts 0
ipv6 address 2001:7a8:5a90:1::60/64
exit
interface vlan 255
name Admin
ip address 172.18.255.1 255.255.255.0
ipv6 enable
ipv6 nd dad attempts 0
ipv6 address 2001:7a8:5a90:255::1/64
exit
interface vlan 10
ip address 172.18.10.253 255.255.254.0
ipv6 enable
ipv6 nd dad attempts 0
ipv6 address 2001:7a8:5a90:1000::2/64
exit
hostname sw-48-1g
clock timezone 2
And i uploaded it through the web interface , replacing the startup-config.
After rebooting the device : only the vlan2 ipv6 configuration is used ... all other vlans only respond in IPv4 .
Did I made something wrong ?
Regards.

Supported with Cisco CUCM, phones, etc. if that is your question. Described in SRND.
Chris

Solaris 10 - IPv6 Configuration

Hey,
i have some Problems with IPv6 configuration on Solaris 10 (SPARC).
I can't configure an physical Interface with an IPv6-address. Every way I choose to configure, Solaris always create a virtual Interface, and give this Interfface the IP-address
Do you now a way, how I could configure the physical Interface?
I tested the way to configure manually, editing the /etc/hostname6.eri1 (IP-address, respectively hostname, respectively "addif 2003::2/64 up") and /etc/inet/ipnodes, and the way to insert "ifconfig eri1 inet6 ***".
Thank you for your help
greetings,
darkholylein
PS: sorry if this text is bad english

Hi,
no, I'm not running in a zone.
If I try to configure manualy, i get this output:
ifconfig eri1 plumb inet6 2003:ff:ff:fd::2/64 up
ifconfig: SIOCSLIFNAME for ip: eri1: already exists
ifconfig: inet6: bad address
ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000
eri0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet ******* netmask ffffff00 broadcast 153.17.28.255
        ether 0:3:ba:16:5d:2b
eri1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
        inet 192.168.1.2 netmask ffffff00 broadcast 192.168.1.255
        ether 0:3:ba:16:5d:2b
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
        inet6 ::1/128 The running way is this:
cat /etc/hostname6.eri1
addif nameserver/64 up
cat /etc/inet/ipnodes
# Internet host table
::1     localhost
127.0.0.1       localhost
*******   tns5    loghost
192.168.1.2               nameserver
2003:ff:ff:fd::2        nameserver
ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000
eri0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet ****** netmask ffffff00 broadcast 153.17.28.255
        ether 0:3:ba:16:5d:2b
eri1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
        inet 192.168.1.2 netmask ffffff00 broadcast 192.168.1.255
        ether 0:3:ba:16:5d:2b
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
        inet6 ::1/128
eri1: flags=2100841<UP,RUNNING,MULTICAST,ROUTER,IPv6> mtu 1500 index 3
        inet6 fe80::203:baff:fe16:5d2b/10
        ether 0:3:ba:16:5d:2b
eri1:1: flags=2100841<UP,RUNNING,MULTICAST,ROUTER,IPv6> mtu 1500 index 3
        inet6 2003:ff:ff:fd::2/64
eri1:2: flags=2180841<UP,RUNNING,MULTICAST,ADDRCONF,ROUTER,IPv6> mtu 1500 index 3
        inet6 2003:ff:ff:fd:203:baff:fe16:5d2b/64 I have no idea why the system create 2 virtual interfaces...
I can't find any error-messages in the logs...
With "ifconfig eri1 inet6 addif ..." I can add an IP-address, but always the system creates an virutal Interface.
Thanks for help.

IPv6 configuration

783570.1 says, "It is possible to configure the Oracle Database and Listener to use both IPv4 and IPv6, but this note covers how to setup the Oracle 11g Release 2 (11.2.0.0) software to use only IPv6 on a Linux system that has both IPv4 and IPv6 configured." Do you know of any documents that show how to configure TNS to answer to both protocols? Thanks.

Is google broken again?
http://www.google.com/#sclient=psy-ab&hl=en&source=hp&q=tnsnames+and+%22IPV6%22&pbx=1&oq=tnsnames+and+%22IPV6%22&aq=f&aqi=&aql=&gs_sm=e&gs_upl=1077l7063l0l7383l19l15l0l0l0l0l468l5418l2-1.5.8l14l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=868032395a21deba&biw=1920&bih=1032

Named EIGRP for IPv6

Hi,
I'm trying to do some lab testing and tested named EIGRP. I was able to understand the EIGRPv6 configuration where you configure the EIGRP statement under the interface and by issuing "no shutdown" under the EIGRP process created. So basically all IPv6 networks that has to be advertised via EIGRP has to have the "ip eigrp xxx" statement under the interface.
Now, I'm trying to do named EIGRP. By simply creating the EIGRP multi-af process and by issuing "no shutdown" under the address-family ipv6 autonomous-system, all interfaces with IPv6 address are being advertised right away and EIGRP peering gets established as well.
Is this the normal behavior? So is it a general practice to shutdown the address-family ipv6 process first and af-interface default to shutdown state, then individually turn on specific af-interface for EIGRP IPv6 processing?
Thanks,
JL
Configuration Below:
R1#sh run
Building configuration...
Current configuration : 1030 bytes
! Last configuration change at 16:23:15 UTC Wed Oct 8 2014
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
hostname R1
boot-start-marker
boot-end-marker
no aaa new-model
ip cef
ipv6 unicast-routing
ipv6 cef
multilink bundle-name authenticated
interface Loopback0
ip address 150.1.1.1 255.255.255.255
ipv6 address 2001:1:1:1::1/128
interface Loopback1
no ip address
ipv6 address 2001:1:1:1::11/128
interface FastEthernet0/0
no ip address
shutdown
speed auto
duplex auto
interface FastEthernet0/1
ip address 155.1.12.1 255.255.255.0
speed auto
duplex auto
ipv6 address 2001:1:1:12::1/64
router eigrp multi_af
address-family ipv6 unicast autonomous-system 100
topology base
exit-af-topology
exit-address-family
ip forward-protocol nd
no ip http server
no ip http secure-server
control-plane
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
end
R1#
R2#sh running-config
Building configuration...
Current configuration : 969 bytes
! Last configuration change at 16:23:26 UTC Wed Oct 8 2014
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
hostname R2
boot-start-marker
boot-end-marker
no aaa new-model
ip cef
ipv6 unicast-routing
ipv6 cef
multilink bundle-name authenticated
interface Loopback0
ip address 150.1.2.2 255.255.255.255
delay 1
ipv6 address 2001:1:1:1::2/128
interface FastEthernet0/0
no ip address
shutdown
speed auto
duplex auto
interface FastEthernet0/1
ip address 155.1.12.2 255.255.255.0
speed auto
duplex auto
ipv6 address 2001:1:1:12::2/64
router eigrp multi_af
address-family ipv6 unicast autonomous-system 100
topology base
exit-af-topology
exit-address-family
ip forward-protocol nd
no ip http server
no ip http secure-server
control-plane
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
end
R2#
R1#sh ipv6 route
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, R - RIP, H - NHRP, I1 - ISIS L1
       I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP
       EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination
       NDr - Redirect, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP
LC 2001:1:1:1::1/128 [0/0]
     via Loopback0, receive
D   2001:1:1:1::2/128 [90/107520]
     via FE80::C80C:10FF:FEF4:6, FastEthernet0/1
LC 2001:1:1:1::11/128 [0/0]
     via Loopback1, receive
C   2001:1:1:12::/64 [0/0]
     via FastEthernet0/1, directly connected
L   2001:1:1:12::1/128 [0/0]
     via FastEthernet0/1, receive
L   FF00::/8 [0/0]
     via Null0, receive
R1#
R2#sh ipv6 route
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, R - RIP, H - NHRP, I1 - ISIS L1
       I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP
       EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination
       NDr - Redirect, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP
D   2001:1:1:1::1/128 [90/103040]
     via FE80::C80A:10FF:FEF4:6, FastEthernet0/1
LC 2001:1:1:1::2/128 [0/0]
     via Loopback0, receive
D   2001:1:1:1::11/128 [90/103040]
     via FE80::C80A:10FF:FEF4:6, FastEthernet0/1
C   2001:1:1:12::/64 [0/0]
     via FastEthernet0/1, directly connected
L   2001:1:1:12::2/128 [0/0]
     via FastEthernet0/1, receive
L   FF00::/8 [0/0]
     via Null0, receive
R2#

The only way I found to disable the automatic route advertisement is to shut the routing process right away after it was created. Go to IPv6 address-family and shut the af-interface default and turn on individual interface that needs to participate. If the routing process is turned on and you added an IPv6 address-family, all interfaces with IPv6 address will automatically participate. So if you already have an IPv4 address-family running in the first place and you want to add IPv6 under the same EIGRP process then it would be ideal to plot it through notepad and paste it to ensure you can have absolute control of the IPv6 advertisement.
That's how I see it and just correct me if I am wrong.

How do I configure ISP native IPv6 connectivity?

Hi!
I'm a network engineer for SECOM, an ISP in Southeastern Colorado. We will be making native IPv6 connectivity available to residential subscribers soon, and I've been tasked with verifying support for our IPv6 platform on home router products.
I have an AirPort Extreme purchased new in November of '09 that is running version 7.5.1, which I believe is completely current.
Under the IPv6 tab in my Advanced settings, I have the following configuration:
IPv6 Mode: Router
Block incoming IPv6 connections: NOT checked
Configure IPv6: Manually
WAN IPv6 Address: fdXX:XXXX:XXXX:a000::2
WAN IPv6 Prefix Length: 64
IPv6 Default Route: fdXX:XXXX:XXXX:a000::1
LAN IPv6 Address: fdXX:XXXX:XXXX:c000::1
(As you can see, I'm using ULA's for testing purposes, and I've replaced the global bits with X's for security.)
The problem is, if I plug a host into one of the LAN ports and assign it an address from the same /64 subnet (e.g. fdXX:XXXX:XXXX:c000::2), the host can't ping the Airport's assigned LAN address.
It can ping:
* the Airport's link-local IPv6 address, and
* the Airport's IPv4 192.168.x.x address
Also (and I'm gratified that this part is working), my CE router can ping the Airport's WAN IPv6 address!
So my question is, is there something in the IPv6 configuration I'm misunderstanding? Has anyone else gotten native statically-configured IPv6 working on the AirPort Extreme?
Thanks very much in advance,
John E. / SECOM
P.S. - I have verified with a packet capture that the AirPort extreme is not responding at all for the configured LAN IPv6 address; i.e., the ICMPv6 neighbor solicitation goes unanswered.
P.P.S. - I have tried a Windows 7 host, a Windows XP host, and an IPv6-certified multitester from JDSU. All exhibit the same symptoms.

I have follow your instruction to connect to my ISP as it shows the following message:
Serial connection established.
using interface sppp0
connect: sppp0 <--> /dev/ttya
local IP address xxxxxxxx
remote IP address 1.1.1.1
But when I ping www.sun.com, it shows:
www.sun.com unknown.
I start Mozilla and it said www.sun.com not found etc...
What has gone wrong?
Do I have to configure some files such as:
/etc/resolv.conf
/etc/hosts
/etc/hostname ?
or any other steps that can help me to connect to the internet?
Thanks...

IPv6 bridging configuration

I have an Airport Extreme 802.11n running firmware 7.4.2. Its LAN port is connected to Gigabit Ethernet LAN that provides native IPv6 (i.e. no tunnels required) at a university. My MacBook Pro running 10.6.4 has no problem obtaining a valid IPv6 address automatically when connected to the same Ethernet, so IPv6 is working fine.
What I would like to do is configure the AEBS to continue to NAT IPv4 traffic, but to bridge IPv6 traffic so that WiFi clients can obtain their own IPv6 address. While I can find endless tutorials around on setting up the AEBS as a tunnel endpoint, I can't find any information on how to bridge IPv6 traffic from LAN to WAN.
The only IPv6 configuration option is Mode, which can be "Host" or "Tunnel". Since Tunnel is obviously not what I want, I have Host selected, and have Configure IPv6 set to "Automatically". However, when configured this way, my MBP does not get an IPv6 address when solely connected via WiFi to the AEBS.
Am I missing something? Does the AEBS support IPv6 tunnels, but not (the much easier and hopefully increasingly more common) native IPv6 for wireless clients? Any help would be appreciated.

It's not working for you because you obviously assumed wrong. Turn on Tunnel mode. Now you should be able to go out using ipv6 on your MBP. Try http://ipv6.google.com/
If you want to be able to connect from the outside in to your MBP then you need to shut off the ipv6 firewall. I (and nobody else it seems) can't get the ipv6 firewall exceptions to work, so it's either block all or no incoming traffic until Apple fixes this. Turning the ipv6 firewall off obviously exposes your machine to the public ipv6 internet.
good luck.

Question about configuring Global IPv6 address on interface

It seems when configuring a global IPv6 address on a layer 3 interface, we cannot specify the whole 128 bit address. We can only specify the prefix and leave the last 64 bits to be generated by the router:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/12-2sx/ip6-addrg-bsc-con.html#GUID-70188E8F-16D2-4DD1-8DE2-70073FF37CC8
Then how can I specify the router address to the client using DHCPv6? Do I have to keep the router RAs while using DHCPv6 together?
Thanks.
zhenning

Hi Leo,
Where is it stated in this doc that you can't configure a /128 ?
Router(config-if)#ipv add 2001::1/128
Router(config-if)#do sh ipv int lo0
Loopback0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::9CD7:2EFF:FEF0:99FA
Global unicast address(es):
    2001::1, subnet is 2001::1/128
Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:1
    FF02::1:FFF0:99FA
MTU is 1514 bytes
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ND DAD is not supported
ND reachable time is 30000 milliseconds
The IOS accepts it on any interface but it will only work for Loopbacks.
I configured a /126 between 2 serials and it worked without any problem but for prefix-advertisement through RA to work then you must configure a /64.
Regards.
Alain

Problem for configuring DHCP IPV6 on my router

Hi everybody,
I try to test DHCP IPV6.
My topologie is very simple :
CustomerA <--------------------------->R_IPV6
- Customer is Linux debian
- Router is 7200 >>> Version 12.4(25f)
I read the documentation
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/configuration/12-4t/ipv6-12-4t-book/ip6-dhcp.html
I try to configured server DHCP IPV6, but I don't see all command !!!!
router_A(config)#ipv6 dhcp pool client_siteA
router_A(config-dhcp)#?
IPv6 DHCP configuration commands:
default Set a command to its defaults
dns-server DNS servers
domain-name Domain name to complete unqualified host names
exit Exit from DHCPv6 configuration mode
no Negate a command or set its defaults
prefix-delegation IPv6 prefix delegation
sip SIP Servers options
router_A(config-dhcp)#
I don't configured the address prefix ???
Why ?
Bad version ?
My configuration
router_A#sh run
Building configuration...
Current configuration : 1297 bytes
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname router_A
boot-start-marker
boot-end-marker
no aaa new-model
ip cef
no ip domain lookup
ip domain name lab.local
ipv6 unicast-routing
ipv6 cef
ipv6 dhcp pool client_siteA
dns-server 2001:4860:4860::8888
dns-server 2001:4860:4860::4444
domain-name nantes.net
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address FC00:1::1/64
ipv6 ospf 1 area 0
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
interface FastEthernet1/0
description Site-Local
no ip address
duplex auto
speed auto
ipv6 address FC00::1/64
ipv6 nd managed-config-flag
ipv6 nd other-config-flag
ipv6 dhcp server client_siteA
interface FastEthernet1/1
no ip address
shutdown
duplex auto
speed auto
ip forward-protocol nd
no ip http server
ipv6 router ospf 1
router-id 1.1.1.1
log-adjacency-changes
redistribute connected
control-plane
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
escape-character 3
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
end

It's OK with :
interface FastEthernet1/0
description Site-Local
no ip address
duplex auto
speed auto
ipv6 address FC00::1/64
ipv6 nd managed-config-flag
ipv6 nd other-config-flag
ipv6 dhcp server client_siteA

What is the value of the 'Name' attribute of an Instance of Resource Type IPv6 Adress?

See subject. I'm writing a Powershell script which is supposed to return the configured hostname and IP Address for a service associated with a role on a failover cluster. I'm using, e.g.. the following to retrieve the IPv4 Address:
$a1 = Get-ClusterResource "MyServiceDisplayName"
$b1 = Get-ClusterGroup $a1.OwnerGroup.Name | Get-ClusterResource | Where-Object {$_.ResourceType -eq "IP Address"}
$c1 = Get-ClusterResource $b1.Name | Get-ClusterParameter | Where-Object {$_.Name -eq "Address"}
and then I access the result via $c1.Value.
I want to do the same for an IPv6 address. The information I don't have is the 'Name' attribute of the result of the Get-ClusterParameter command, that is the condition of the Where-Object in the line which gives me $c1. (for the
IPv4 Address I got it by running this on our test server, but that does not have IPv6 configured, so I cannot do the same in that case). Is it simply 'Address' as well?
TIA, Thomas

Hi,
I am trying to involve someone familiar with this topic to further look at this issue. There might be some time delay. Appreciate your patience.
Thanks for your understanding and support.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

PPP over IPv6

Hello,
I'm trying to configure PPPoE in IPv6 on a Cisco Router 7301 (without RADIUS) but it doesn't send DNS(ip name-server) and an IPv6 configuration from the pool (Windows 7).
I tried in IPv4, and everything worked.
VLANs
2 : fd01::120:0/112
96 : fd01::96:0/112
120 :fd01::120:0/112
This is an IPv6 Test network
Thanks.
My network
Router
aaa new-modelpppoe-forwardingip cef!
ip domain name server1.stageipv6.comip name-server fd01::120:53ip ssh version 2ipv6 unicast-routingipv6 cef!username test password 7 06120A3258!bba-group pppoe stag_pppoe virtual-template 1 sessions per-mac limit 2!interface GigabitEthernet0/0 description VLAN 2 ip address 80.245.16.27 255.255.255.128 duplex auto speed auto media-type rj45 no negotiation auto ipv6 address FD01::2:1000/112 ipv6 enable!interface GigabitEthernet0/1 description VLAN 96 ip address 192.168.96.27 255.255.255.0 duplex auto speed auto media-type rj45 no negotiation auto ipv6 address FD01::96:1/112 ipv6 enable pppoe enable group stag_pppoe!interface Virtual-Template1 description pppoe bba1 no ip address ipv6 address autoconfig ipv6 enable ipv6 mtu 1492 no peer default ip address peer default ipv6 pool pool_pppoe ppp authentication chap callin!ipv6 route FD01::120:0/112 FD01::2:2ipv6 local pool pool_pppoe FD01::96:0/112 114
ipconfig /all
No field IPv6 addressJust IPv6 link local : fe80:....DNS : fec0:0:0:0:ffff::1%1 fec0:0:0:0:ffff::2%1 fec0:0:0:0:ffff::3%1

Hello,
Well, I don't know why but IPv4 is not delivered.
So I've just edited :
ip name-server 80.245.17.100ip cefno ip domain lookupinterface Virtual-Template 1 ip unnumbered Loopback1 ip mtu 1492 ipv6 enable ipv6 nd other-config-flag no ipv6 nd ra suppress ipv6 dhcp server test rapid-commit peer default ip address pool ipv4ppp peer default ipv6 pool pool_pppoe ppp authentication chap callinip local pool ipv4ppp 192.168.0.5 192.168.0.8ipv6 local pool pool_pppoe fd01:1:1:94::/62 64
Regards

Convention for embedding IPv4 into IPv6?

All,
I read in rfc 4038 that representing IPv4 address in an IPv6 address should be like 2001::FFFF:192.168.1.1, which would be 2001::FFFF:c0a8:101, or 2001.2.3.4::FFFF:192.168.1.1 (2001:2:3:4:0:ffff:c0a8:101). However, setting up NAT-PT any 96 bit prefix will work. So I'm wondering if the standard set forth in rfc4038 (its informational) really applies to NAT-PT, or just for IPv4 applications not being natted (which doesn't make sense unless some other 4to6 mechanism is involved).
Any thoughts?
John

John,
it is not very clear what are you trying to achieve by "embedding" ipv4 (address|traffic) into ipv6.
By what you are discussing apperaars you are talking about the rappresentation of an IPv4 address into an IPv6 address field. Fact is that all bit being born equal they mean differently based on contest.
Each 4 hex digit are 16 bit and two groups of 4 hex digits (any) can contain and IPv4 address.
So an IPv4 compatible IPv6 address would be 0:0:0:0:0:0:192.168.1.1 which can also be rapresented as ::c0a8:101.
What that means and how edge routers/devices and gateway would handle such address depends on context/configuration. 6to4 6rd autotunnels ipv4 compatible ipv6 and ISATAP tunnels carry within their address field tunnel end point/ipv4 destination addresses that are extracted and used to route traffic.
I know I did not clear the issue up but it really depends on what you are doing/trying to achieve how you embed an ipv4 address (of what) in an IPv6 address field and what that meas.
I would definitely recommand:
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-addrg_bsc_con_ps10890_TSD_Products_Configuration_Guide_Chapter.html#wp1038821
and
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-tunnel_ps10890_TSD_Products_Configuration_Guide_Chapter.html#wp1055999
Actually the whole book is a good read.
Hope this helps
Cheers
Fabio

Why do the connected devices to the router have the smae IPV6 address?

Hi,
Now I meet the issue
The operation steps on router (WRVS4400N):
1.Set the IP mode as Dual-stack IP and then save
2.Disable the IPV4 DHCP server
3.Use other deivces to connect the router.
The connected devices have the same IP address(2005:123:456:789::1),I am confused,why is it?
please help.
Thanks!

Hello,
The WRVS4400N is in fact assigning IPv6 addresses to all the devices connected to it, but the WRVS4400N does not show a table with the IPv6 addresses assigned to each device connected, it only shows the IPv4 addresses and the respective MAC address for each device. The IPv6 of the WRVS4400N is an aggregetable global unicast IPv6 address (See the image below)
If you go to Setup > LAN you will see that you cannot modify the prefix of the IPv6 address, all you can modify is the postifx and prefix length field (As you can see in the image below).
For more information about these fields and general IPv6 configuration, please refer to the article IPv6 Configuration on WRVS4400N Wireless-N Gigabit Security Routers
The only way you have to see the IPv6 address assigned to each device connected to the WRVS4400N is to check on each device the IPv6 address assigned. The WRVS4400N does not provide this information. You can see from the below picture the IPv6 address assigned to my computer. As you can see, the WRVS4400N assign the the computer the prefix 2002:c0a8::/6. Then you can see the actual IPv6 address which is 2002:c0a8:0:b182:e6a:9b0e:cdcf.
As you can see, the initial part (The prefix) remains the same, since these are the first 64 bits of the whole IPv6 address. The other 64 bits of the IPv6 address represents the interface ID, that is, the device that is connected to the WRVS4400N.
I hope you find this information helpful. If you have further questions, don't hesitate to ask.
Alejandro Moncada
SBCD Engineer
[email protected]

DhcpV6 will not answer to OtherStatefull requests if no scope configured

Hello,
Question 1.
Just figured out that a (WS2012-R2) DHCPv6 server will not reply to DHCPv6 SOLICIT requests if only IPv6 SERVER OPTIONS have been configured. Even so the clients are instructed to request only "OTHER STATEFULL" options. In this case, the server
options might be sufficient because it concerns any client hat makes a request. No?
By configuring an unnecessary scope, the DHCPv6 server will reply to DHCPv6 SOLICIT requests for the above clients and sends the OTHERSTATEFULL DHCPv6 options... Why is this so?
Question 2.
...BUT also hands out addresses from that scope to clients that does or does NOT request anything. Clients that have their Ethernet adapter configuration set to ManagedAddress=DISABLED & OTHERSTATEFULL=DISABLED receive a full IPv6 configuration for that
interface. I do not want this. How can this be stopped?
Thomas.

On Wed, 09 Jul 2008 10:36:01 GMT, d1ngetje wrote:
> - DHCP and PDHCP are on different machines (DHCP is on windows) so no
> option 60 is set.
this should be wrong as the message ProxyDHCP service did not reply to
request on port 4011. only shows up if that option is set.
Marcus Breiden
If you are asked to email me information please remove the - in my e-mail
address.
The content of this mail is my private and personal opinion.
http://www.didas.de

EIGRP IPv6 Configuration

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