Hi, On Fri, May 02, 2014 at 10:56:07PM +0200, Gert Doering wrote: > ... so, something I am missing... :-/
Oh well. First thing is "I should have looked at 'ifstatus wan_6'" which
indeed tells me "WAN is working":
root@OpenWrt:/etc/config# ifstatus wan_6
{
"up": false,
"pending": true,
"available": true,
"autostart": true,
"proto": "dhcpv6",
"device": "eth0",
"data": {
}
}
Second thing is what tcpdump tells me...
21:07:24.773303 IP6 (hlim 1, next-header UDP (17) payload length: 148)
fe80::12fe:edff:fee6:5f33.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit
(xid=eacb5 (elapsed-time 12979) (option-request SIP-servers-domain
SIP-servers-address DNS-server DNS-search-list SNTP-servers NTP-server
AFTR-Name opt_67 opt_82 opt_83) (client-ID hwaddr type 1 10feede65f33)
(user-class) (reconfigure-accept) (Client-FQDN) (IA_NA IAID:1 T1:0 T2:0) (IA_PD
IAID:1 T1:0 T2:0 (IA_PD-prefix ::/0 pltime:0 vltime:0)))
21:07:24.774839 IP6 (class 0xe0, hlim 255, next-header UDP (17) payload length:
59) fe80::214:1cff:fed2:30c0.547 > fe80::12fe:edff:fee6:5f33.546: [udp sum ok]
dhcp6 advertise (xid=eacb5 (server-ID hwaddr type 1 00141cd230c0) (client-ID
hwaddr type 1 10feede65f33) (status-code no addresses))
... so hnetd is asking for IA_NA and IA_PD, which the upstream Cisco doesn't
support (at least not in the IOS version that's running, need to research
whether a different Cisco platform could do IA_NA), so the Cisco returns "no
addresses", and then hnetd is unhappy and does not want to ask again for
"only IA_PD".
Questions :-)
- is hnetd intentionally ignoring the A-Bit in RA?
- what's the recommended config on the upstream side to make it work?
Remove the "O"-Bit? (I have that because I cannot send RFC6106 info
from IOS, so RA+stateless DHCP is what we currently use to get IPv6
addresses + DNS addresses into the client devices)
thanks,
gert
--
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025 g...@net.informatik.tu-muenchen.de
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