Hi this is my network configuration. How to ping addresses from One device to another. I don't know the commands .they are connected point to point.

Firewall(config)# do show interfaces ip ipv6
NAME IPV6 ADDRESS
------------------------------------------
dummy0
fe-1-1
fdf9:bf8:cccc::1/48
fe80::20a:dcff:fefb:e8ff/64
fe-1-2
fdf9:bf8:dddd::1/48
fe80::20a:dcff:fefb:e8ff/64
fe-cm-1
fe80::20a:dcff:fefb:e8fd/64
switch.0001
fe80::20a:dcff:fefb:e8ff/64


Destination# show interfaces ip ipv6
NAME IPV6 ADDRESS
------------------------------------------
dummy0
fe-1-1
fe80::20a:dcff:feff:65ff/64
fe-cm-1
fe80::20a:dcff:feff:65fd/64
switch.0001
fdf9:bf8:dddd::2/48
fe80::20a:dcff:feff:65ff/64

ping6 -I eth0 fe80::82ee:73ff:fe1a:d3df
PING fe80::82ee:73ff:fe1a:d3df(fe80::82ee:73ff:fe1a:d3df) from fe80::82ee:73ff:fe1a:d3df eth0: 56 data bytes
64 bytes from fe80::82ee:73ff:fe1a:d3df: icmp_seq=1 ttl=64 time=0.033 ms
64 bytes from fe80::82ee:73ff:fe1a:d3df: icmp_seq=2 ttl=64 time=0.045 ms
64 bytes from fe80::82ee:73ff:fe1a:d3df: icmp_seq=3 ttl=64 time=0.033 ms
^C
--- fe80::82ee:73ff:fe1a:d3df ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2922ms
rtt min/avg/max/mdev = 0.033/0.037/0.045/0.005 ms

That didnt work.

This one worked

Destination# ping6 fdf9:bf8:dddd::1 iface fdf9:bf8:dddd::2
PING fdf9:bf8:dddd::1(fdf9:bf8:dddd::1) from fdf9:bf8:dddd::2 : 56 data bytes
64 bytes from fdf9:bf8:dddd::1: icmp_seq=1 ttl=64 time=1.87 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=2 ttl=64 time=0.328 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=3 ttl=64 time=0.334 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=4 ttl=64 time=0.315 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=5 ttl=64 time=0.326 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=6 ttl=64 time=0.328 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=7 ttl=64 time=0.342 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=8 ttl=64 time=0.322 ms
64 bytes from fdf9:bf8:dddd::1: icmp_seq=9 ttl=64 time=0.329 ms



Destination# tcpdump interface ?
Description: The IP addresses for the routable interfaces in the global namespac
e.
Possible completions
dummy0 fe-1-1 fe-cm-1 switch.0001
Destination# tcpdump interface fe-1-1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on fe-1-1, link-type EN10MB (Ethernet), capture size 262144 bytes
16:11:09.963381 IP6 fdf9:bf8:dddd::2 > fdf9:bf8:dddd::1: ICMP6, echo request, seq 81, length 64
16:11:09.963646 IP6 fdf9:bf8:dddd::1 > fdf9:bf8:dddd::2: ICMP6, echo reply, seq 81, length 64
16:11:10.963386 IP6 fdf9:bf8:dddd::2 > fdf9:bf8:dddd::1: ICMP6, echo request, seq 82, length 64
16:11:10.963658 IP6 fdf9:bf8:dddd::1 > fdf9:bf8:dddd::2: ICMP6, echo reply, seq 82, length 64
16:11:11.963535 IP6 fdf9:bf8:dddd::2 > fdf9:bf8:dddd::1: ICMP6, echo request, seq 83, length 64