How to tell if you got a /60 (PD)?

  • I verified with my ISP that they support /60 prefix requests for DHCP6-PD. I couldn't find a confirmation in the WebGUI that that is what I had obtained.

    For those of you who use /60's how do you know that you actually got it?

    The only thing I could find was in the logfile.

    Sep 18 19:22:04 uac.localdomain dhcpd: Listening on Socket/28/re1/2601:xyz:xyz:xyz::/60
    Sep 18 19:22:04 uac.localdomain dhcpd: Sending on   Socket/28/re1/2601:xyz:xyz:xyz::/60

  • Banned

    Try typing ifconfig into console?

  • One easy way to tell is by splitting it up into /64's (one per LAN-side interface). Unless you're doing something like that further downstream, why would you want a /60 on your LAN to begin with?

  • It's not for the LAN. I wanted an extra /64 for an OpenVPN roadwarrior connection. Right now when I use it on my phone I get a split tunnel. IPv4 stuff goes over openVPN with no problem. The IPv6 stuff stays on the cellular connection.

    I suppose I could have tried to get a /63 instead but most discussion is about /60 so I got the feeling it is better supported.

    I didn't think of ifconfig because the routing table didn't show it. Which in retrospect, was correct. Only the first /64 would be assigned automatically to re1(LAN). The rest would have to be assigned somewhere. With only 1 LAN, it's not immediately obvious from the WebGUI if you actually get a /60 (or other prefix size).

    I'll try ifconfig later tonight.


  • Banned

    ovpns1: flags=8051 <up,pointopoint,running,multicast>metric 0 mtu 1500
            options=80000 <linkstate>inet6 fe80::20d:b9ff:fe2c:f47c%ovpns1 prefixlen 64 scopeid 0xb
            inet --> netmask 0xffffff00
            inet6 2001:470:xxx:xxx::1 prefixlen 64
            nd6 options=3 <performnud,accept_rtadv>Opened by PID 21993</performnud,accept_rtadv></linkstate></up,pointopoint,running,multicast> 

Log in to reply