Tata Sky Broadband: Static IPV6 - Unable to Configure

[panks21]

this is great.. if possible please upload pfsense settings on imgbb and share link here...

 

[tatyasky]

@panks21 so I FINALLY got PfSense to work with v6 on TSBB as it should. The hitch was RA set to Assisted. I changed it to "Unmanaged" to enable the machines pick up a gateway from the ISP and it works! Now Windows connection properties shows v6 connectivity as "Internet" and I connect to ipv6 dot google.com. Typing in "what's my ip" into Google gives me my v6 address. Yee haah! Sorry I am unable to post a screenshot here.

You got your 1 Gbps up and running?

 

[Chip]

@tatyasky no it was just the IPv6 bit. TSBB 1 Gbps is still a disappointment. Will try Airtel for a month in Oct.

 

[Chip]

Ok guys, this is the result of my experiments with pfSense with a Ipv6 connection and a /64 subnet

a) DHCPv6 server is not required

b) It doesn't like more than 2 DNSes being inputted on DHCPv6 config page. Add more than 2 and windows 10 stops getting an IPv6 address. Not sure if this is a bug or intentional

c) RA must be switched on - Unmanaged, Managed, Assisted modes work. Not experimented with Stateless DCHP & Router only modes

d) If no DNS is specified that it defaults to using the LAN's v6 address as the DNS server.

e) I have selected the following options on the RA config page

• Provide DNS configuration via radvd
• Use same settings as DHCPv6 server

I imagine configuration for Airtel IPv6 whenever it starts in Pune E would be similar.

 

[Chip]

this is great.. if possible please upload pfsense settings on imgbb and share link here...

Here you go bro - TSBB Static IPv6 Config on pfSense

I imagine these settings will also work for dynamic v6 which TSBB hands out..ofcourse it's without the reserved 4th quartet but with a /64 subnet mask nevertheless. Need to mention I am still experimenting with these settings and they could change. I'll share here in case of any notable changes. I would encourage other users especially those on Airtel IPv6 to check if these settings work for them.

 

[Chip]

@Sushubh whenever I click on links I get forwarded to cuelinks dot com in a new tab. How can I go to the intended site? Something I need to do? Also I cannot seem to upload images on here. Please help.

 

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[panks21]

@Chip thanks.. I tried the same settings and it works on Airtel too... with a single VLAN.. but it seems Airtel not sending default gateway for IPv6

 

[Chip]

@panks21 great to know it works on Airtel as well. Yeah, one thing I forgot to mention..set a VLAN on the WAN port to whatever value and priority Airtel uses in its ONT. The pfSense v6 gateway is automatically set to a link local address. For e.g. in my case it is set to fe80::8ad9:8fff:fe58:3b71.
On the client machine for e.g. this Windows PC it is set to fe80::208:a2ff:fe0a:61ab%13.

These values are automatically generated. I did not do anything. Make sure your RA page settings are properly set. Rebooting pfSense may do the trick. Even the Nokia ONT has a link local address as the gateway as you will see from the cases where people asked for TS v6 address and shared screenshots.

 

[panks21]

Just now realized that the IPv6 DNS are not passed on to the clients.. I am using NextDNS and have a IPv6 DNS from them.. which I have added as part of DHCPv6 setting..

Any other setting to be enabled...

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : 314gi
   Description . . . . . . . . . . . : TP-LINK Wireless USB Adapter #2
   Physical Address. . . . . . . . . : E8-94-F6-25-CD-85
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2401:4900:1f30:xxxx:xxxx:xxxx:xxxx:xxxx(Preferred)
   Temporary IPv6 Address. . . . . . : 2401:4900:1f30:xxxx:xxxx:xxxx:xxxx:xxxx(Preferred)
   Link-local IPv6 Address . . . . . : fe80::a444:255a:3c9a:b69d%19(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.114.224(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.192
   Lease Obtained. . . . . . . . . . : 25 September 2021 23:36:39
   Lease Expires . . . . . . . . . . : 26 September 2021 01:36:42
   Default Gateway . . . . . . . . . : fe80::4262:31ff:fe12:7e86%19
                                       192.168.114.254
   DHCP Server . . . . . . . . . . . : 192.168.114.254
   DHCPv6 IAID . . . . . . . . . . . : 183014646
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-26-A6-C9-F6-30-85-A9-8E-47-62
   DNS Servers . . . . . . . . . . . : 192.168.114.251
                                       45.90.28.65
   NetBIOS over Tcpip. . . . . . . . : Enabled
   Connection-specific DNS Suffix Search List :
                                       314gi

 

[Chip]

@panks21 I can see 2 DNS v4 servers - 192.168.114.251 obviously the router and 45.90.28.65 NextDNS. In the DHCPv6 server settings of pfSense, add these two:

2a07:a8c0::4a:583a
2a07:a8c1::4a:583a

From here

Or, in the System --> General Setup page of pfSense add these two v6 servers and select the corresponding v6 WAN/gateway interface. You can''t add a v4 WAN to a v6 DNS

PS - The LAN interface of the router and its v6 IP can also act as the DNS.