Sierra Wireless EM7345 and IPv6

Bjørn Mork bjorn at
Sun Jun 1 06:03:18 PDT 2014

Bjørn Mork <bjorn at> writes:

> Dan Williams <dcbw at> writes:
>> In the dcbw/icera-ip6 I took the approach (including for MBIM) that if
>> the modem only returns an LL address, that the 'method' is set to DHCP
>> (meaning SLAAC for IPv6).  But clients should use the rest of the info
>> like DNS.  Which should cover this case.
> Yes, that sounds good.  Should solve the problem.

Just an additional note: This modem does _sometimes_ report the assigned
global prefix.  It seems this will happen if I connect, disconnect, and
connect again.  But it still has an odd idea about prefix length:

bjorn at nemi:~$ mmcli -b 0
Bearer '/org/freedesktop/ModemManager1/Bearer/0'
  Status             |   connected: 'yes'
                     |   suspended: 'no'
                     |   interface: 'wwan0'
                     |  IP timeout: '20'
  Properties         |         apn: 'telenor.ipv6'
                     |     roaming: 'allowed'
                     |     IP type: 'ipv6'
                     |        user: 'none'
                     |    password: 'none'
                     |      number: 'none'
                     | Rm protocol: 'unknown'
  IPv4 configuration |   method: 'unknown'
  IPv6 configuration |   method: 'static'
                     |  address: '2a02:2121:1:305:0:22:afe:de01'
                     |   prefix: '120'
                     |  gateway: '2a02:2121:1:305:0:22:afe:de02'
                     |      DNS: '2001:4600:4:fff::54', '2001:4600:4:1fff::54'

SLAAC still works fine, and does of course use the full /64.


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