Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

hrksh

macrumors newbie
Original poster
Jul 21, 2014
3
0
Hi All,
I need a quick help.
I was trying to add a IPv6 Link local address using Ifconfig

Code:
sudo ifconfig en0 inet6 fe80::204:a3ff:fe12:13b4 add

and the result is
Code:
ifconfig: ioctl(SIOCGIFAFLAG_IN6): Can't assign requested address

again I tried using
Code:
networksetup -setv6manual Ethernet fe80::204:a3ff:fe12:13b4 64 fe80::21f:d0ff:fe40:8bbd
but interface en0 doesn't show any Ipv6 link local address when I do ifconfig en0.

result -

Code:
$ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	options=2b<RXCSUM,TXCSUM,VLAN_HWTAGGING,TSO4>
	ether 40:6c:8f:05:5d:f0 
	inet 169.254.138.147 netmask 0xffff0000 broadcast 169.254.255.255
	media: autoselect (100baseTX <full-duplex>)
	status: active

please help me quickly.
 

hrksh

macrumors newbie
Original poster
Jul 21, 2014
3
0
One more input on this -
I tried ping6 -c 5 ::1 and there are responses.

Code:
$ ping6 -c 5 ::1
PING6(56=40+8+8 bytes) ::1 --> ::1
16 bytes from ::1, icmp_seq=0 hlim=64 time=0.136 ms
16 bytes from ::1, icmp_seq=1 hlim=64 time=0.283 ms
16 bytes from ::1, icmp_seq=2 hlim=64 time=0.287 ms
16 bytes from ::1, icmp_seq=3 hlim=64 time=0.285 ms
16 bytes from ::1, icmp_seq=4 hlim=64 time=0.275 ms

But system preference -> network -> status shows ,
Ethernet is connected to the link local address "fe80::204:a3ff:fe12:13b4".

but when i do ping6 from a peer machine which is connected to the MAC OS device, no response from the MAC OS. I checked from wire shark.
 

hrksh

macrumors newbie
Original poster
Jul 21, 2014
3
0
Hi All,
Please help me to solve this issue.
few more inputs -
Code:
microchips-macbook-pro:/ microchipidc$ netstat -rnf inet6
Routing tables

Internet6:
Destination                             Gateway                         Flags         Netif Expire
default                                 fe80::21f:d0ff:fe40:8bbd%en0    UGc             en0
::1                                     link#1                          UHL             lo0
2001:db8:ffff:2::/64                    link#4                          UC              en0
2001:db8:ffff:2:426c:8fff:fe05:5df0     40:6c:8f:5:5d:f0                UHL             lo0
2001:db8:ffff:2:c53c:f3f3:aa63:e3f5     40:6c:8f:5:5d:f0                UHL             lo0
fe80::/64                               link#4                          UC              en0
fe80::204:a3ff:fe12:13b4                40:6c:8f:5:5d:f0                UHL             lo0
fe80::%lo0/64                           fe80::1%lo0                     UcI             lo0
fe80::1%lo0                             link#1                          UHLI            lo0
fe80::%en0/64                           link#4                          UCI             en0
fe80::204:a3ff:fe12:13b4%en0            link#4                          UHLWIi          en0
fe80::21f:d0ff:fe40:8bbd%en0            0:1f:d0:40:8b:bd                UHLWIir         en0
fe80::426c:8fff:fe05:5df0%en0           40:6c:8f:5:5d:f0                UHLI            lo0
ff01::%lo0/32                           fe80::1%lo0                     UmCI            lo0
ff01::%en0/32                           link#4                          UmCI            en0
ff02::%lo0/32                           fe80::1%lo0                     UmCI            lo0
ff02::%en0/32                           link#4                          UmCI            en0
microchips-macbook-pro:/ microchipidc$

Mac laptop is connected point to point with another IPv6 router machine.
While doing ping from router to the mac laptop , there is only Neighbor solicitation message received from the router and no response is being sent from the Mac laptop for the IPv6 address

fe80::204:a3ff:fe12:13b4
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.