Junos OS

Hi

we have a SRX 345 cluster with two isp uplinks. the backup isp uplink is a pppoe connection (with external dsl modem).  this connection is working.

now my problem. we want to use ipv6 for this backup connection, too. but the clients got a static prefix from main isp.

my way was to create a source nat for ipv6 with

    source-nat {
        interface;
    }

this is not working because the nat use the fe80 address and not from isp prefix. when i use a manual created prefix from isp. it works. but the prefix is "dynamic".  the problem is that the addresses are dynamic and will work until the address changes.

who can i ise source-nat with dynamisch prefix delegation?

the client config is

    dhcpv6-client {
        client-type stateful;
        client-ia-type ia-pd;
        client-identifier duid-type duid-ll;
        no-dns-install;
    }

i have also try autoconfig with ia-na and an ia-na +w -pd combinatin.

Hi Marco,

without knowing your network or your intention and many assumptions: forget NAT. Advertise both Prefixes to the Clients so that they have 2 GUA's assigned.


Greetings
Matthias

    source-nat {        interface;    }

    dhcpv6-client {        client-type stateful;        client-ia-type ia-pd;        client-identifier duid-type duid-ll;        no-dns-install;    }