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IPv6 clients can't ping each other even they are in the same LAN

titicaca
Level 1
Level 1

Greetings,

I have a PVE hypervisor, and I created one VM as the DHCP server, and I have two other clients as DHCP clients. Both clients are getting their IPv6 leases successfully. One has the IP 2001:db8:1::1 and the other has IP 2001:db8:1::2. But I can't ping the clients from each other.

I did a packets capture, and I see the neighbor discovery between the server and client. And from one client, I can see the Renewal message from another client and I can see Multicast Listener Report Message v2 from another client, but there's no solicit message from the other client. 

I don't have any v-routers in this network segment, but since one client can see the message from the other client. Why there's no neighbor discovery information exchange between them? Can IPv6 experts help answer? Thank you! 

 

 

 

30 Replies 30

titicaca
Level 1
Level 1

Actually it is strange, because I have changed the following config under/etc/sysconfig/network to 1, but after reboot, those ipv6 forwarding options will be all reset to zeros again.

 

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