IP V4, and V6 on my WAN1 !!!?????

[HaniAbuelkhair4]

I found this on my MX merkai and not sure if its OK 

I have only WAN1 with both IP's V4, and V6 

Is this OK and tried to disable IPv6 on my WAN could not find way to do that 

Any advise 

I have complains of slow internet 

[alemabrahao]

https://documentation.meraki.com/?title=MX%2FNetworks_and_Routing%2FIPv6_Support_on_MX_Security_%26_...

[alemabrahao]

Just edit Wan interface configuration And you will be able to disable It.

[alemabrahao]

[HaniAbuelkhair4]

Its not an option 

And on the Address and VLAN's you can see the WAN interface at all 

[alemabrahao]

What firmware version are you running?

[HaniAbuelkhair4]

MX 17.10

[alemabrahao]

I see, let me perform a test.

[alemabrahao]

@HaniAbuelkhair4 

Ypu should to edid your VLAN to disable that:

[HaniAbuelkhair4 · Accepted solution]

Really appreciated your help 

But i could not find that option 

[alemabrahao]

Click in next.

[HaniAbuelkhair4]

Yes its disabled already for the VLAN

But the main issue is my WAN is getting V4 and V6 IP address at the same time using WAN1 only 

[HaniAbuelkhair4]

Maybe because its already disabled 

But the WAN is getting v6 IP

[alemabrahao]

So, there is one more option. Open a case with Meraki support. 😅

[ww]

 I fixed slow internet disabling  ipv6 on the local vlans. Any chance you have that enabled?

[HaniAbuelkhair4]

Local VLAN's are disabled already 

its enabled on the WAN and getting both v4, and v6 but there is no option t disable V6

[Brash]

Your MX is receiving an IPv6 address on the WAN because the ISP is distributing one via DHCP6.

There is no way to disable the MX from receiving this address.

If you believe it's causing an issue, contact your ISP and ask that they disable IPv6 on the link. Or you could try contacting Meraki support and see if they can disable it on the MX from the backend (not sure if this is possible or not)