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.\" @(#)nsip.4 1.4 (Berkeley) 3/28/91
.Nd software network interface encapsulating ns packets in ip packets.
.Fd #include <netns/ns_if.h>
interface is a software mechanism which may be
packets through otherwise uncooperative
It functions by prepending an
header, and resubmitting the packet
The super-user can advise the operating system of a willing partner
address to be associated with an
Presently, only specific hosts pairs are allowed, and for each host
pair, an artificial point-to-point interface is constructed.
broadcast addresses or hosts may be paired
Specifically, a socket option of
passing the following structure:
struct sockaddr rq_ns; /* must be ns format destination */
struct sockaddr rq_ip; /* must be ip format gateway */
.It nsip%d: can't handle af%d.
a message with addresses formatted in an unsuitable address
family; the packet was dropped.
It is absurd to have a separate pseudo-device for each pt-to-pt
There is no way to change the
the encapsulation interface is set up.
The request should honor flags of
remote networks, and the absence of
This was intended to postpone the necessity of rewriting reverse
device, and to allow passing
Arpanet-Milnet gateway, to facilitate testing between some co-operating