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Have you tried looking at traffic on the DHCP6 server with tcpdump:<br>
<font color="#993300"><tt>[0:root@elmo clamav]$ tcpdump -n -i lan4
portrange 546-547</tt><tt><br>
</tt><tt>tcpdump: verbose output suppressed, use -v or -vv for
full protocol decode</tt><tt><br>
</tt><tt>listening on lan4, link-type EN10MB (Ethernet), capture
size 262144 bytes</tt><tt><br>
</tt><tt>14:49:26.162028 IP6
fe80::74b4:e117:e83:e565.dhcpv6-client >
ff02::1:2.dhcpv6-server: dhcp6 renew</tt><tt><br>
</tt><tt>14:49:26.164029 IP6
fe80::6ef0:49ff:fe0a:1e54.dhcpv6-server >
fe80::74b4:e117:e83:e565.dhcpv6-client: dhcp6 reply</tt><tt><br>
</tt><tt>14:50:26.595666 IP6
fe80::f976:c419:fe5b:11c.dhcpv6-client >
ff02::1:2.dhcpv6-server: dhcp6 renew</tt><tt><br>
</tt><tt>14:50:26.597087 IP6
fe80::6ef0:49ff:fe0a:1e54.dhcpv6-server >
fe80::f976:c419:fe5b:11c.dhcpv6-client: dhcp6 reply</tt><tt><br>
</tt></font><br>
Substitute your interface for lan4.<br>
<br>
Bill<br>
<br>
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