Need to pass IPv6 Connectivity to a VLAN, many VMs need to be reachable from the Internet on port 161

Hi,

the XG does not propagate IPv6 addresses. You need to setup your own internal address ranges and do not forget to use a Nat. You can use ra or dhcp or both. If you use ra you will end with multiple IPv6 addresses on devices, so you will need to workout how your filtering rules will apply to specific devices or the entire IPv6 range.

I use dhcp and ra, with some of the ra features disabled so only one address is assigned.

ian

Do you know why there are no interfaces available in my screenshot?

Thanks,

Josh

Hi,

because you have not created an IPv6 interface on any of your ports.

ian

Cool. Yes I see that now. So the solution is to make some sort of internal IPv6 address scheme on the interfaces and VLANs. Then configure DHCP and an RA, NAT, and a firewall rule?

Correct.

ian

I just don't think this is going to work. Basically I have a bunch of virtual routers sitting in a VLAN, on the LAN side of the firewall. These virtual routers need to receive polls from "kentik.com" via a few different ports. (161 for instance)

If I am using DNAT, I have one IP address on the WAN that Kentik can poll to. So kentik says poll SNMPv3 on  "MY IPv6 Address:161" and that maps to ONE of the virtual routers.

I still have a large number of virtual routers that aren't reachable, and to my knowledge Kentik does not let me choose other ports for which to poll each individual router.

That's why I was trying not to use NAT.

HI,

IPv6 on an XG (current version) requires a NAT to access the internet. You could try setting up aliases on the WAN port using the IPv6 range assigned to you.

Ian

rfcat_vk,

I have created new aliases on the WAN port. I can access them from the Internet, I can imagine this working with a 1:1 DNAT based. Could there also be a 1:many scenario that could work in my situation?

Thanks for your help,

Josh

Hi Josh,

i don’t know, you can experiment while waiting for one of the sophos support team to review the thread and add some 3xtra information.

ian