Hello,
I'm subscribed to 3BB internet 2.5g/1g in Phuket and they gave me an AIS black router 2.5g capable. I have it in bridge mode atm and connected to my Unifi UDM SE and setup PPPoE and everything is working fine. Except that I asked them to enable IPv6 for me and they did, but they gave me a /64 delegation size. I know this because I set my UDM SE to request for /56 but the IPv6 only work on one VLAN meaning the ISP DHCPv6-PD server responded with /64 block so my UDM SE can only give it to one VLAN. My other VLANs are missing a global IPv6 address.
I tried to call them and explain my situation and specifically requested them to change from /64 to /56 for prefix delegation, but after being put on hold multiple times and several callbacks, they came to the conclusion that they cannot change anything and I'll have to live with this /64 block...
I didn't want any conflict or trouble so I just told them it's ok and hung up but it's still ticking me off, mainly because they kept misunderstanding my request and the last employee kinda gave me an attitude at first. First they said something along the lines of "you can only have one PPPoE device, I see you have one on VLAN33, it's impossible to give another," which is completely unrelated to my issue and mind you, when i called them i told them specifically "IPv6 Delegation size /56"
I repeated my request so they said they would call me back. After a while another guy called back and told me "We cannot control your device because it's in bridge mode so you will have to set it yourself." I told them I already did and it's on their end, not mine, so they went back to check again and came back telling me "This is very weird, I cannot change anything on my end. It says it is delegating /64 and you should double check your settings because normally the client controls the delegation." wtf??? Do they even know how DHCP-PD works? 😭 after explaining to him again he finally told me he cannot change the value and it's stuck like that and I just gave up.
I need /56 because I run multiple VLANs and want proper IPv6 on all of them, not just one network. anyone dealt with this BS before? do i have to live with /64 or is there a way to get /56
Tl;DR: Requested /56, got a "we cant give you that" back from 3bb