On 07/21/2014 11:25 AM, Tim wrote:
On Mon, 2014-07-21 at 10:55 -0400, Robert Moskowitz wrote:
I have a headless system that I cannot connect to. So I was thinking
to put a direct connection to it and my notebook. Both ethernets
would use the zeroconf (169.254.0.0/16) addresses. I could then use
fping
fping -g 169.254.0.0/16
And SHOULD be able to get its address, and then SSH into the box.
I was under the impression that zeroconf did some rudimentary name
resolution, and you ought to be able to connect to hostname.local
(replacing "hostname" with the actual hostname).
It'd be a bit dopey if a zero-configuration scheme required you to
configure things...
I am doing a little testing, and zeroconf does not seem to be working.
I am seeing the link up light on my ethernet port. I am seeing a
local-scope v6 address, but no v4 address:
p6p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::ea9a:8fff:fe8d:7b56 prefixlen 64 scopeid 0x20<link>
ether e8:9a:8f:8d:7b:56 txqueuelen 1000 (Ethernet)
RX packets 7 bytes 2130 (2.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 46 bytes 4948 (4.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note that it is receiving packets from the other system. It also has a
local-scope ipv6 addr, but no zeroconf addr (both systems are Fedora 20).
So how do I start zeroconf? Of course on the other system, I can't do
that...
So given ipv6 local-scope, how do I learn the other system's addr.
Trying to figure out fping6. How do I restrict it to the desired
interface?
Any other thoughts? I can't get to the box to recable it and reboot
it (as that is the only way I can figure out for it to readdress eth0)
until this evening.
Only that: Are you on the same network? 169.254 connections can't be
expected to be reachable outside of their own net.
Crossover cable. Is that enough of a 'same network'? :)
And I have considerable routing and addressing knowledge. Besides being
one of the authors of rfc 1918, and worked on CIDR, here at IETF I
contribute to ipv6ops and ipv6man.
--
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Have a question? Ask away: http://ask.fedoraproject.org
