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Problem with IPv6 routing on VLANs
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Topic: Problem with IPv6 routing on VLANs (Read 521 times)
joost_sp
Newbie
Posts: 2
Karma: 0
Problem with IPv6 routing on VLANs
«
on:
April 23, 2024, 07:55:47 pm »
Hi,
I've setup multiple VLANs on my router.
My setup works perfectly for IPv4, traffic get routed from a client on each VLAN.
When I connect a client to any of the VLANs my clients get a global unicast IPv6 address via DHCPv6 (2a... something).
From one of the VLANs (256) I can also ping address with IPv6, however on other VLANs my traffic gets blocked.
(and using tracert -6 google.com I get no wiser).
I'v looked at page System -> Routes -> Status, and I see that for the 256 vlan there are three routes active:
ipv4 172.18.0.0/20 link#16 U NaN 1500 vlan0.1.256 MGMT
ipv6 2a02:b46b:675b:c000::/58 link#16 U NaN 1500 vlan0.1.256 MGMT
ipv6 fe80::%vlan0.1.256/64 link#16 U NaN 1500 vlan0.1.256 MGMT
whereas for the other VLANS (where traffic isnt being routed) I only see two routes active:
ipv4 172.17.0.0/16 link#14 U NaN 1500 vlan0.1.128 NETW
ipv6 fe80::%vlan0.1.128/64 link#14 U NaN 1500 vlan0.1.128 NETW
Could you help me fix this problem?
Thanks,
Joost
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bimbar
Sr. Member
Posts: 365
Karma: 24
Re: Problem with IPv6 routing on VLANs
«
Reply #1 on:
April 24, 2024, 10:06:19 am »
A /58 routed to a vlan interface seems wrong to me. All subnets should be /64 .
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joost_sp
Newbie
Posts: 2
Karma: 0
Re: Problem with IPv6 routing on VLANs
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Reply #2 on:
April 24, 2024, 10:28:20 pm »
Quote from: bimbar on April 24, 2024, 10:06:19 am
A /58 routed to a vlan interface seems wrong to me. All subnets should be /64 .
Thanks for your reply.
What I've done set the IPv6 Configuration Type to None on all interfaces and rebooted the router.
Then I set my IPv6 Configuration Type back to DHCPv6 on my WAN interface and my IPv6 Configuration Type back to Track Interface to all my other VLAN-backed interfaces on the LAN, each with their own IPv6 Prefix ID and now under System -> Routes -> Status I see a /64 ipv6 route on each interface and IPv6 is work now.
All I can think off is that I might have been to hastily with applying the settings and changing the next interface. At least all works now
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Problem with IPv6 routing on VLANs