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Operating Systems
Solaris
NTP server to support IPv4 and IPv6 client
Post 302544613 by DGPickett on Thursday 4th of August 2011 10:04:03 AM
08-04-2011
Well, that is just ipv6 integration, not NTP. Who does your router(s)?
IPv6 Networking FAQ
I have not gone that far into the lan room!
If the local router and hosts on your collision domain do what you do, then it should not be a problem. I seem to recall all IPv4 addresses have an implicit equivalent ipv6 address. Most IP stacks are IPv6 compatible now. Your server should arp for both. NTP usually runs on the payload of the IP UDP packet, and should not much care if grandma is ipv4 or ipv6. The people 2 floors up take care of that. I have not seen any ipv6 used to configure anything, yet, as the local world seems happy to be ipv4 to the casual viewer, or more generally name driven, and we have NAT and intranet 10. and the like behind NAT firewalls, stretching the ipv4 space. Why pay for lots of real IP addresses for the intranet, when there are 16 million for free!
IPv6 Networking FAQ
I have not gone that far into the lan room!
If the local router and hosts on your collision domain do what you do, then it should not be a problem. I seem to recall all IPv4 addresses have an implicit equivalent ipv6 address. Most IP stacks are IPv6 compatible now. Your server should arp for both. NTP usually runs on the payload of the IP UDP packet, and should not much care if grandma is ipv4 or ipv6. The people 2 floors up take care of that. I have not seen any ipv6 used to configure anything, yet, as the local world seems happy to be ipv4 to the casual viewer, or more generally name driven, and we have NAT and intranet 10. and the like behind NAT firewalls, stretching the ipv4 space. Why pay for lots of real IP addresses for the intranet, when there are 16 million for free!Last edited by DGPickett; 08-04-2011 at 11:09 AM..
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LEARN ABOUT FREEBSD
flowctl
FLOWCTL(8) BSD System Manager's Manual FLOWCTL(8) NAME
flowctl -- ng_netflow(4) control utility SYNOPSIS
flowctl [-d level] path command DESCRIPTION
The flowctl utility is intended to control the ng_netflow(4) nodes. It has a single option: -d level Set the netgraph(3) debugging level to level. COMMANDS
Currently, flowctl supports only one command. show [ipv4|ipv6] [human|verbose] This command is the analog of the ``show ip cache flow'' command of a Cisco router. It dumps the contents of the flow cache in Cisco- like format. Specifying either ipv4 or ipv6 would extract only IPv4 or IPv6 flows respectively. It has optional parameter verbose, which is analog of the ``show ip cache verbose flow'' command. Additionally, human parameter can be specify to show selected flows in human-readable format. EXIT STATUS
The flowctl utility exits 0 on success, and >0 if an error occurs. SEE ALSO
netgraph(3), ng_netflow(4) AUTHORS
The flowctl utility was written by Gleb Smirnoff <glebius@FreeBSD.org>, based on ipacctctl written by Roman V. Palagin <romanp@unshadow.net>. BSD
June 8, 2012 BSD