Howto: ipv6 Router Advertisement Option DNS Server

[Manfred_Huels]

Has anybody realized a working ipv6 config in EXOS 15.1 with router advertisement for DNS Server? (RFC 6106)
I tried:
configure vlan NAME router-discovery ipv6 ...
but there is no further option.

conf vlan dhcp ...
acceptes only IPv4 Adresses

as i can see, there is no specific command for enabling these router advertisements.

regards
Manfred

[Manfred_Huels]

ok - with 15.3 it works.

Unfortunately seems there not to be any Client, which understands the Switch Advertisings.

With

configure vlan net1ipv6 router-discovery ipv6 add dnssl lbswest.ipv6
configure vlan net2ipv6 router-discovery ipv6 add dnssl lbswest.ipv6
configure vlan net1ipv6 router-discovery ipv6 add rdnss 2a00:7460:da11:be00::98
configure vlan net2ipv6 router-discovery ipv6 add rdnss 2a00:7460:da11:be00::98
configure vlan net1ipv6 router-discovery ipv6 add prefix 2a00:7460:da11:be00::/64
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 autonomous-flag on
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 onlink-flag on
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 preferred-lifetime 604800
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 valid-lifetime 2592000
configure vlan net2ipv6 router-discovery ipv6 add prefix 2a00:7460:da11:be01::/64
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 autonomous-flag on
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 onlink-flag on
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 preferred-lifetime 604800
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 valid-lifetime 2592000
enable router-discovery ipv6 vlan net1ipv6
enable router-discovery ipv6 vlan net2ipv6

my SLES Clients do not get the IP address of the DNS server.

If i apply a DHCP Service:

configure bootprelay ipv6 add 2a00:7460:da11:be01::2 vr VR-Default
enable bootprelay ipv6 vlan net1ipv6
enable bootprelay ipv6 vlan net2ipv6
configure vlan net1ipv6 router-discovery ipv6 add dnssl lbswest.ipv6
configure vlan net2ipv6 router-discovery ipv6 add dnssl lbswest.ipv6
configure vlan net1ipv6 router-discovery ipv6 add rdnss 2a00:7460:da11:be00::98
configure vlan net2ipv6 router-discovery ipv6 add rdnss 2a00:7460:da11:be00::98
configure vlan net1ipv6 router-discovery ipv6 add prefix 2a00:7460:da11:be00::/64
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 autonomous-flag on
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 onlink-flag on
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 preferred-lifetime 604800
configure vlan net1ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be00::/64 valid-lifetime 2592000
configure vlan net2ipv6 router-discovery ipv6 add prefix 2a00:7460:da11:be01::/64
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 autonomous-flag on
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 onlink-flag on
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 preferred-lifetime 604800
configure vlan net2ipv6 router-discovery ipv6 set prefix 2a00:7460:da11:be01::/64 valid-lifetime 2592000
enable router-discovery ipv6 vlan net1ipv6
configure vlan net2ipv6 router-discovery ipv6 managed-config-flag on
configure vlan net2ipv6 router-discovery ipv6 other-config-flag on
enable router-discovery ipv6 vlan net2ipv6

the router sends no router advertisings until i had rebooted him. Additionally only my SLES 11 SP3 client gets some DNS config from the DHCP Server, the SLES 11 SP2 does not. NTP service advertisings from the DHCP was not understood from either.

So i have finally concluded:
- DNS autoconfig does not work respectively works only with DHCPv4
- Until further, IPv6 works with Extreme Networks routers only in a Dual Stack environment

regards
Manfred

[Sumit_Tokle]

Yes..X250 can upgrade to 15.2.

Use below link to get software/hardware compatibility matrix information,

http://enterasys.wpengine.netdna-cdn.com/wp-content/uploads/2014/02/HW-SW-Compatibility-Matrix-Rev-0...

[r_____________9]

This feature is supported since 15.2. But not sure if your X250e can upgrade to 15.2 or not?

[Manfred_Huels]

It seems, not all ExOS supports this feature.

System Type: X250e-48t
Primary ver: 15.1.2.12
patch1-6

does not. I will ask our reseller, if we miss a license or something like that.

IPv6-Testswitch.2 # configure vlan net1ipv6 router-discovery ipv6 add
prefix prefix advertised for this vlan
IPv6-Testswitch.2 # configure vlan net1ipv6 router-discovery ipv6 add dnssl lbswest.ipv6
^
%% Invalid input detected at '^' marker.
IPv6-Testswitch.3 #