INTRO (7) NetBSD Miscellaneous Information Manual INTRO (7 ...
INTRO (7) NetBSD Miscellaneous Information Manual INTRO (7 ...
INTRO (7) NetBSD Miscellaneous Information Manual INTRO (7 ...
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SYSCTL (7) <strong>NetBSD</strong> <strong>Miscellaneous</strong> <strong>Information</strong> <strong>Manual</strong> SYSCTL (7)<br />
ip6 hdrnestlimit integer yes<br />
ip6 kame_version string no<br />
ip6 keepfaith integer yes<br />
ip6 log_interval integer yes<br />
ip6 lowportmax integer yes<br />
ip6 lowportmin integer yes<br />
ip6 maxflows integer yes<br />
ip6 maxfragpackets integer yes<br />
ip6 maxfrags integer yes<br />
ip6 redirect integer yes<br />
ip6 rr_prune integer yes<br />
ip6 use_deprecated integer yes<br />
ip6 v6only integer yes<br />
udp6 do_loopback_cksum integeryes<br />
udp6 recvspace integer yes<br />
udp6 sendspace integer yes<br />
The variables are as follows:<br />
ip6.accept_rtadv<br />
If set to non-zero, the node will accept ICMPv6 router advertisement packets and autoconfigures<br />
address prefixes and default routers. The node must be a host (not a router )<br />
for the option to be meaningful.<br />
ip6.anonportmax<br />
The highest port number to use for TCP and UDP ephemeral port allocation. This cannot<br />
be set to less than 1024 or greater than 65535, and must be greater than<br />
ip6.anonportmin.<br />
ip6.anonportmin<br />
The lowest port number to use for TCP and UDP ephemeral port allocation. This cannot<br />
be set to less than 1024 or greater than 65535.<br />
ip6.auto_flowlabel<br />
On connected transport protocol packets, fill IPv6 flowlabel field to help intermediate<br />
routers to identify packet flows.<br />
ip6.dad_count<br />
The variable configures number of IPv6 DAD ( duplicated address detection ) probe<br />
packets. The packets will be generated when IPv6 interface addresses are configured.<br />
ip6.defmcasthlim<br />
The default hop limit value for an IPv6 multicast packet sourced by the node. This value<br />
applies to all the transport protocols on top of IPv6. There are APIs to override the<br />
value, as documented in ip6(4).<br />
ip6.forwarding<br />
If set to 1, enables IPv6 forwarding for the node, meaning that the node is acting as a<br />
router. Ifset to 0, disables IPv6 forwarding for the node, meaning that the node is acting<br />
as a host. IPv6 specification defines node behavior for “router” case and “host” case<br />
quite differently, and changing this variable during operation may cause serious trouble.<br />
It is recommended to configure the variable at bootstrap time, and bootstrap time only.<br />
ip6.gifhlim<br />
The maximum hop limit value for an IPv6 packet generated by gif(4) tunnel interface.<br />
<strong>NetBSD</strong> 3.0 December 27, 2007 21
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