ER605 V2 announces old prefix after it is no longer valid
I have an ER605 V2, the WAN interface is configured like this:
The LAN interface is configured like this:
(By the way, the prefix that you can see in this screenshot is also the old one, but I guess that's from the controller and might be outdated, no big deal.)
The prefix has just changed (I think about an hour ago) and the DHCPv6 prefix delegation has long expired. According to the upstream DHCP server the router has gotten the new prefix. (Lease time is 1 minute and the router correctly comes to check about every minute.)
The problem is that the router still sends out RAs with the old prefix!
It should at least send RAs with the new prefix. Even better, it should send the old prefix as deprecated (valid/preferred lifetime = 0) in addition to the new prefix.
But it just sends RAs with the old prefix.
@Clive_A I had already captured one on the LAN side but the site wouldn't allow me to upload it. I now had the idea to take a screenshot of the screenshot and now I could upload it.
I'll have to see how I can get one on the WAN side when the prefix changes next time.
In case you're interested (this is completely off topic of course), this is what I get when I try to upload the original screenshot:
