Airtel now putting Static IP customers in CGNAT if they use PPPoE

  • Thread starter Thread starter Gaurav15
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@Chip I'm not denying that pppoe connection giving CGNAT ip... But this was not case for static ip customers. I.e., As long as you are using static ip, you can also establish one or more PPPOE connection parallely and get dynamic public IP address. But the moment static ip plan deactivated, then pppoe session will again give CGNAT ip.

Maybe as OP mentioned this was recent change for him and slowly it may be applied to all other region. But as of now I'm using static ip and also use pppoe session having public ip for all my wifi clients.

@albonycal if I'm not wrong you are using Mikrotik, pppoe scan in mikrotik is not showing pppoe server?
 
These Airtel thieves don't even want to delegate static IPv6 prefixes and instead fleece extra bucks for end-to-end connectivity by selling static IPv4 at exorbitant rates :mad:. Now the possibility of using dynamic DNS to connect remote sites has also been thrown out of the window due to CGNAT.
 
@Soumil Tata Play can give you a static IPv6 prefix should u really feel the need for one. My TPF static address (/64 of course) was given free of charge.

Each company has their own policies and they're not perfect for each one of us. Pick the one that suits you the best.
 
@Chip @hariselio Yes, I was getting public dynamic IPv4 if I used PPPoE till as recently as Dec-24. But now PPPoE is giving CGNAT.

When I didn’t have static IP (which is a long time ago), airtel gave CGNAT IPv4 as expected.
 
@hariselio not all routers permit 2 WAN connection modes over an assigned WAN port for e..g pfSense doesn't allow it neither does my Asus router which is currently doing duty as the main router.
 
Indian ISPs should give /56 IPv6 to customers as minimum, as per recommendation by APNIC. Indian govt should make a law about it. But someone first needs to understand these things. Even BSNL gives a /64 IP address to customers.
 
@Gaurav15 You are right and I am still mystified why these guys are so damned stingy with what is in theory almost limitless addresses. Most overseas ISPs delegate /48 or /56.

Every single Indian ISP only assigns a /64. However each /64 delegation = 18,446,744,073,709,551,616 public addresses. Question is bro, are you sure you need more than that in your home network? ;)

But let me add, the only reason you want a larger (i.e. smaller prefix #) prefix is for subnetting. TBH /64 is good enough for my tiny home network. If I ever have to subnet it'll be with IPv4.
 
@Chip 64 length prefixes have caused me major headaches due to my network topology. I have one subnet for my hosted services and another for my home devices, each behind their own routers, in addition to an edge router connected to the ISP. The edge router cannot just "pass down" the /64 prefix to the internal home network area border router. Instead a hack like ICMPv6 relaying has to be used, which is not particularly robust.

Another reason for such massive network delegations is to allow users to perform SLAAC(which is better for privacy and has a #[devices]/2^64 probability of duplicate address assignment).

A subnet-able prefix like '/60' should be sufficient for users that want to implement subnetting or downstream delegation at their end(2^4=16 subnets), without eating too many addresses(if that's what they are stingy about).
 
@Chip as @Soumil has mentioned, a /60 or /56 is required for subnetting. You can create subnets and organize your network, each subnet can have their own firewall rules. You can put each class of device in different subnets etc. That was the plan of IPv6 designers and everyone should have the ability to use it.
 
@Gaurav15 @Soumil yes if your use case requires different subnets you would require a PD >/64 unfortunately Indian ISPs in all their wisdom have decided to stick with /64 and we have no other choice but to live with it.

I'd be the first to say that getting a /56 or /48 would make me happy too only because it gives me options that I don't need as of now. I believe the only way out is to contact Airtel Support and enquire if they can assign such a prefix to your WAN connection. If you do, let me know what they say.

I'd reckon chances of getting a larger prefix is better with TPF which has been using IPv6 since day 1. Airtel is only doing what the Govt. has mandated for v6 adoption.
 
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