IPv6 link-local & tcpdump using IPv6

[Priyaamaresh]

Hi,

Am using FreeBSD7.4/i386. I configured IPv6 by adding the following to /etc/rc.conf

ipv6_enable="YES"
ipv6_ifconfig_bce0="2010::5ef3:fcff:feb6:59bc"
ipv6_defaultrouter="2010::5ef3:fcff:feb6:1"
ipv6_network_interfaces="bce0"
ipv6_default_interface="bce0"

Now my problems are:

1. How to make IPv6 link-local address possible? I tried with [cmd=]sysctl -w net.inet6.ip6.auto_linklocal=1[/cmd]
   Because should use link-local address in TAHI testsuite. But it is using IPv4 address rather than link-local IPv6 address as its source and destination. Is the presence of Global IPv6 is the cause of this issue? How to make replace that IPv4 with IPv6 link-local address?
2. How to dump IPv6 packets? I tried with [cmd=]tcpdump -i bce0[/cmd] was very fine since uses IPv4. When I tried with IPv6
   

   # tcpdump -i bce0 -s 512 -vv ip6 or proto ipv6
   tcpdump: listening on bce0, link-type EN10MB (Ethernet), capture size 512 bytes

So please help me to make link-local address communication possible and dump IPv6 packets into the other host(AIX). If am wrong in concepts in what I have mentioned, Do correct me.

 

[SirDice]

i) How to make IPv6 link-local address possible?

They are created automatically.

How to make replace that IPv4 with IPv6 link-local address?

Configure your test suite.

ii) How to dump IPv6 packets?
I tried with "tcpdump -i bce0" was very fine since uses IPv4

That command dumps both IPv4 and IPv6.

When I tried with IPv6

# tcpdump -i bce0 -s 512 -vv ip6 or proto ipv6
tcpdump: listening on bce0, link-type EN10MB (Ethernet), capture size 512 bytes

If that doesn't show anything there simply isn't any IPv6 traffic.