PPPoE IPV4 IPV6 Prefix Delegation

Hello
IPV4 can assign IP address in LAN, but now the application and management of IPv6 is not very mature. Under ipv6, "Every grain of sand can have an address", that is to say, every machine in your LAN can have an address without your assignment.

Hi @jason_hu

I have used this setup with Mikrotik RouterOS
When an client (using a CPE router) connect its pppoe client, it receives from pppoe-server a ipv6 /56 prefix then the CPEallocated this prefix on Lan /64, each user behind CPE receives a IPV6 /64.

I want use the same case on Huawei, is it possible?

Hi @jason_hu

I have used this setup with Mikrotik RouterOS
When an client (using a CPE router) connect its pppoe client, it receives from pppoe-server a ipv6 /56 prefix then the CPEallocated this prefix on Lan /64, each user behind CPE receives a IPV6 /64.

I want use the same case on Huawei, is it possible?

See one example:

ipv6 prefix prefixo-lan delegation
prefix 2804:xxxx:4000::/40 delegating-prefix-length 56
#
ipv6 pool lan-pppoe bas delegation
dns-server 2804:xxxx:d000:1::172:30
prefix prefixo-lan
#

ipv6 prefix prefixo-wan local
prefix 2804:xxxx:d004::/48
#
ipv6 pool wan-pppoe bas local
dhcpv6 rapid-commit
dns-server 2804:xxxx:d000:1::172:30
prefix prefixo-wan


aaa
#
domain xxxx.com.br
authentication-scheme default
accounting-scheme acct1
radius-server group rd1
ip-pool pool_CGNAT
ipv6-pool lan-pppoe
ipv6-pool wan-pppoe
dns primary-ip x.x.172.30
dns second-ip x.x.174.30
dns primary-ipv6 2804:xxx:d000:1::172:30
dns second-ipv6 2804:xxx:d000:6::174:30
nas logic-sysname PPPOE-01

@LuizPuppin Thanks for your help!

In this example above

prefix 2804:xxxx:4000::/40 delegating-prefix-length 56
Will pppoe server send a /56 to each Lan's CPE?

ipv6 prefix prefixo-wan local
prefix 2804:xxxx:d004::/48
Will pppoe server send a /48 to each Wan's CPEs or it will delegate one /64 from 2804:xxxx:d004::/48 to each Wan's CPE?

ipv6 prefix prefixo-wan local
prefix 2804:xxxx:d004::/48

This will delegate one /64 to each CPE client on WAN interface.

@gilberto_milhomem
Example：<HUAWEI> system-view
[~HUAWEI] interface virtual-template 5
[*HUAWEI-Virtual-Template5] ppp authentication-mode chap
[*HUAWEI-Virtual-Template5] quit
[*HUAWEI] commit
[~HUAWEI] aaa
[~HUAWEI-aaa] authentication-scheme auth5
[*HUAWEI-aaa-authen-auth5] authentication-mode radius
[*HUAWEI-aaa-authen-auth5] quit
[*HUAWEI] commit
[~HUAWEI-aaa] accounting-scheme acct5
[*HUAWEI-aaa-accounting-acct5] accounting-mode radius
[*HUAWEI-aaa-accounting-acct5] quit
[*HUAWEI-aaa] quit
[*HUAWEI] commit
[~HUAWEI] radius-server group rd5
[*HUAWEI-radius-rd1] radius-server authentication 10.6.55.55 1645
[*HUAWEI-radius-rd1] radius-server accounting 10.6.55.55 1646
[*HUAWEI-radius-rd1] radius-server type standard
[*HUAWEI-radius-rd1] radius-server shared-key-cipher hello
[*HUAWEI-radius-rd1] quit
[*HUAWEI] commit
[~HUAWEI] ip pool pool2 bas local
[*HUAWEI-ip-pool-pool2] gateway 10.10.10.2 255.255.255.0
[*HUAWEI-ip-pool-pool2] section 0 10.10.10.3 10.10.10.100
[*HUAWEI-ip-pool-pool2] dns-server 10.10.10.1
[*HUAWEI-ip-pool-pool2] quit
[*HUAWEI] commit
[~HUAWEI] ipv6 prefix pre1 local
[*HUAWEI-ipv6-prefix-pre1] prefix 2001:2421::/64
[*HUAWEI-ipv6-prefix-pre1] quit
[*HUAWEI] commit
[~HUAWEI] ipv6 pool pool1 bas local
[*HUAWEI-ipv6-pool-pool1] prefix pre1
[*HUAWEI-ipv6-pool-pool1] dns-server 3001:0410::1:2
[*HUAWEI-ipv6-pool-pool1] quit
[*HUAWEI] commit
[~HUAWEI] aaa
[~HUAWEI-aaa] domain isp5
[*HUAWEI-aaa-domain-isp5] authentication-scheme auth5
[*HUAWEI-aaa-domain-isp5] accounting-scheme acct5
[*HUAWEI-aaa-domain-isp5] radius-server group rd5
[*HUAWEI-aaa-domain-isp5] ipv6-pool pool1
[*HUAWEI-aaa-domain-isp5] ip-pool pool2
[*HUAWEI-aaa-domain-isp5] quit
[*HUAWEI-aaa] quit
[*HUAWEI] commit
[~HUAWEI] interface gigabitethernet 1/0/2.1
[*HUAWEI-GigabitEthernet1/0/2.1] pppoe-server bind virtual-template 5
[*HUAWEI] commit
[~HUAWEI-GigabitEthernet1/0/2] bas
[*HUAWEI-GigabitEthernet1/0/2-bas] access-type layer2-subscriber default-domain authentication isp5
[*HUAWEI-GigabitEthernet1/0/2-bas] quit
[*HUAWEI] commit
[~HUAWEI-GigabitEthernet1/0/2] ipv6 enable
[*HUAWEI-GigabitEthernet1/0/2] ipv6 address auto link-local
[*HUAWEI-GigabitEthernet1/0/2] quit
[*HUAWEI] commit
[~HUAWEI] interface GigabitEthernet 1/0/1
[~HUAWEI-GigabitEthernet1/0/1] ipv6 enable
[*HUAWEI-GigabitEthernet1/0/1] ipv6 address auto link-local
[*HUAWEI-GigabitEthernet1/0/1] ipv6 address 2011::1/64 eui-64
[*HUAWEI] commit
Finally, you can run the display ipv6 prefix pre1 command to query the prefix address pool.

Thanks @LuizPuppin

I will test these configurations.

Hello Everyone.

@LuizPuppin
Only today i could test these configurations, but didn't work.
When a user-pppoe connects it isn't receiving wan prefix and lan prefix.


[~BRAS-JABO]display ipv6 prefix prefixo-wan
----------------------------------------------------------------------------------
Prefix Name        : prefixo-wan
Prefix Index       : 2
Prefix constant index: -
Prefix Type        : LOCAL
Prefix Address     : 2804:XXXX:3F03::
Prefix Length      : 48
Reserved Type      : NONE
Valid Lifetime     : 3 Days 0 Hours 0 Minutes
Preferred Lifetime : 2 Days 0 Hours 0 Minutes
IfLocked           : Unlocked
Vpn instance       : -
Free Prefix Count  : 262143
Used Prefix Count  : 0
Reserved Prefix Count: 0
Excluded Prefix Count: 0
Radius Used Total  : 0
Radius Used Online : 0



[~BRAS-JABO]display ipv6 prefix prefixo-lan
----------------------------------------------------------------------------------
Prefix Name        : prefixo-lan
Prefix Index       : 1
Prefix constant index: -
Prefix Type        : DELEGATION
Prefix Address     : 2804:XXXX:300::
Prefix Length      : 40
Link-Address       : -
Reserved Type      : NONE
Valid Lifetime     : 3 Days 0 Hours 0 Minutes
Preferred Lifetime : 2 Days 0 Hours 0 Minutes
IfLocked           : Unlocked
Vpn instance       : -
PD Prefix Len      : 56
PD Prefix/C-DUID   : -
slaac-unshare-only : FALSE
pd-unshare-only    : FALSE
dhcpv6-unshare-only: FALSE
Free Prefix Count  : 65536
Used Prefix Count  : 0
Bound Prefix Count (Free): 0
Bound Prefix Count (Used): 0
Flexibly-Allocted Prefix Count: 0


Is it necessary add IPV6 address on Interface (Vlans) that the users pppoe connects?
I enable pppoe on this interface, bellow configurations GigabitEthernet0/3/1.1  (Interface GigabitEthernet0/3/1 with vlans 1001 and 1002)

[~BRAS-JABO-GigabitEthernet0/3/1.1]display this
#
interface GigabitEthernet0/3/1.1
ipv6 enable
ipv6 address auto link-local
user-vlan 1001 1002
pppoe-server bind Virtual-Template 1
bas
#
  access-type layer2-subscriber default-domain authentication jabo
#
#
return