Re: IPv6 works on em0 () but not on em1 () - what's wrong?,IPv6 works on em0 () but not on em1 () - what's wrong?

[Lev Serebryakov]

Hello Hiroki,

Wednesday, January 11, 2017, 2:43:28 AM, you wrote:

>  What happens by typing the following command?
>  % ping6 ff02::1%em1

% ping6 ff02::1%em1
PING6(56=40+8+8 bytes) fe80::225:90ff:fe24:6bf8%em1 --> ff02::1%em1
16 bytes from fe80::225:90ff:fe24:6bf8%em1, icmp_seq=0 hlim=64 time=0.163 ms
16 bytes from fe80::222:4dff:fe9d:e093%em1, icmp_seq=0 hlim=64 time=0.737 
ms(DUP!)
16 bytes from fe80::225:90ff:fe24:6bf8%em1, icmp_seq=1 hlim=64 time=0.132 ms
16 bytes from fe80::222:4dff:fe9d:e093%em1, icmp_seq=1 hlim=64 time=0.766 
ms(DUP!)
16 bytes from fe80::225:90ff:fe24:6bf8%em1, icmp_seq=2 hlim=64 time=0.086 ms
16 bytes from fe80::222:4dff:fe9d:e093%em1, icmp_seq=2 hlim=64 time=0.713 
ms(DUP!)
...

 BTW, when I add address and default route by hands, everything starts to
work. So, this NIC doesn't have problems with IPv6 per se! Looks like some
weird configuration problem.

-- 
Best regards,
 Levmailto:l...@freebsd.org

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Re: IPv6 works on em0 () but not on em1 () - what's wrong?,IPv6 works on em0 () but not on em1 () - what's wrong?

[Hiroki Sato]

Lev Serebryakov  wrote
  in <58756dde.5000...@freebsd.org>,<58756dde.5000...@freebsd.org>:

le>
le>  I have MoBo (Supermicro X9SCL-F) with two 1G NICs, first one (em0) is
le> based on 82579LM, and second one (em1) is based on 82574L.
le>
le>  When I'm using em0 with simple config:
le>
le> ifconfig_em0="inet 192.168.134.2 netmask 255.255.255.0 mtu 9000"
le> ifconfig_em0_ipv6="inet6 accept_rtadv"
le>
le>  everything works fine - em0 get IPv6 prefix from rtadvd of my router
le> and "tspdump -n -i em0 icmp6" shows some traffic, like router and prefix
le> announcements. So far so good.
le>
le>  I want to use em1 (and don't use em0 at all), because 82579LM has some
le> known bugs according to SuperMicro support and someties hangs whole system.
le>
le>   So, I change config to
le>
le> ifconfig_em1="inet 192.168.134.2 netmask 255.255.255.0 mtu 9000"
le> ifconfig_em1_ipv6="inet6 accept_rtadv"
le>
le>  connect em1 instead of em0 to the switch and reboot. And after that
le> interface (em1) can not get IPv6 prefix, don't get global address (and
le> shows only link-local one)and "tcpdump -n -i em1 icmp6" shows nothing at
le> all! IPv4 works fine, though.
le>
le>  What do I do wrong? Is it known issue of 82574L?
le>
le>  I'm running 10-STABLE r311462.

 What happens by typing the following command?

 % ping6 ff02::1%em1

-- Hiroki


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