HI!
I got a Mikrotik STX LTE and a SIM card from a local ISP in Latvia. The idea is to test IPv6. I never had any experience with ipv6. The mikrotik device has IPv6 enabled, in the IPv6 ND menu I get a 2003:xxxxxxxxxx::/64 prefix showing up, in IPv6 address lists I see a 2003:xxxxxxxxxxxxxx::/64 prefix and a link-local prefix on the LTE1 interface. But when I enable DHCPv6-client I can’t get a prefix. Status is allways “searching”.
IPv6 is enabled on the ISP side.
Can someone please help me with this one?
Does it mean that Mikrotik gets the address from SLAAC and does not get a IPv6 prefix to delegate to hosts?
Of course you need to have the facility to get prefixes available from your ISP, you have to ask them if they run a DHCPv6 prefix degation server.
Probably not, when you try to run DHCPv6 client and get no response.
Maybe they have another method. But SLAAC is going to give you only a network address, no prefix delegation.
pe1chl, if I do not get a IPv6 prefix but only a address from SLAAC, than the one device that gets the address has connectivity but since there is no NAT in IPv6 I can not handle out IP’s to my LAN.
So if I get a 4G stick and put the SIM card in the 4G stick, connect it to my laptops USB, then theoretically my laptop should be able to get a global IPv6 address?
Yes, that is a problem with IPv6. You have to do routing and you can only do that when you get more than one /64 from your provider.
The IPv6 your provider delivers is likely intended to be used by endsystems directly (phone, tablet), no router between it.
Your only alternative is to bridge between the interfaces instead of route.
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Which kind-of breaks current IPv4 setup as bridging devices is done on layer2 connectivity which is shared by both IPv4 and IPv6. Even if one could somehow (I’m not saying that there’s no way, I just don’t know it) split that, IPv6 devices would be left open to evil InternetV6 without any FW. Which is not good thing either.
Actually you can have a firewall on the bridge. But no IPv4 NAT.
You have to decide if you really want IPv6 routing and maybe have to talk to your ISP to find what their view on the situation is.
Do they give only a single /64 to each connection or maybe even only a single address, then the connection is not intended for routing.
Some 4G companies may even not like (or forbid) to connect a router and multiple devices to a single subscription, as that likely
increases the amount of data you will use and could cut into their profit model.