Native QNX Neutrino network manager -- backward-compatible version
io-net ... -p qnet [option[,option]...]
||This manager is going to be deprecated in future editions. It's currently included
because it's compatible with QNX Neutrino 6.2.
Use commas (,) to separate the options (not spaces).
- Overwrite Qnet's misaligned-access detection. The value of X is
- Don't allow misaligned access.
- Allow misaligned access.
- Encapsulate the Qnet packet into an ip or ethernet packet.
By default, Qnet uses bind=en.
If you specify a full interface name (e.g. bind=en0), then only that interface is used.
- Change the hostname of the machine.
- Map any incoming user ID to map_uid and map its group ID to
the group ID of map_uid.
- If the incoming user ID is 0, map it to map_uid and map its
group ID to the group ID of map_uid.
- A network directory. The default directory is /net. The
default domain is either the hostname domain, if it has one, or the
directory with the slashes changed to dots and reversed. For example,
/net/outside/canada has a domain of
The first mount is the default directory and domain that the local hostname
will resolve to.
- Add n padding bytes between the link layer
header and the Qnet packet header, to make the packet (and its payload)
aligned. All nodes in the network running npm-qnet-compat.so
must specify the same option argument in order to communicate. Default is no padding (padding=0).
- Add to the resolver list for mountpoints that follow.
The following values for resolver are built into the
- ndp -- Node Discovery Protocol for
broadcasting name resolution requests on the LAN (similar to
the TCP/IP ARP protocol). This is the default.
- dns -- Take the node name, add a
dot (.) followed by the node domain, and send the
result to the TCP/IP
- file -- The optional resolver_parameter is
the name of the file to use; the default is /etc/qnet_hosts.
The format of the file is:
#comment ... This is a comment line
The host.domain represents a QNET FQDN. The addr1 (and
are the interface addresses for the FQDN. For bind=en QNET, the
is xx:xx:xx:xx:xx:xx (the MAC address); for bind=ip QNET, the format
of an address is a.b.c.d in IP dotted notation.
If you specify something else for resolver, Qnet attempts to load
The default name resolver is ndp. For queries how to
create nr-resolver.so, please contact QNX support.
The npm-qnet-compat.so interface implements native QNX Neutrino networking.
It's the original Qnet stack.
If you want to use this version of Qnet, make
/lib/dll/npm-qnet.so a symbolic link to
npm-qnet-compat.so. By default, npm-qnet.so is a
symbolic link to npm-qnet-l4_lite.so.
||When you specify two or more resolve= options
in a series, the resolvers form a list of lookups for the
directory specified in the subsequent mount=
You may notice that the list of resolvers is terminated by a
mount= option. Any resolve= options
placed after a mount= option form a
new list -- they don't add to the previous
For example, the following line:
- has resolvers a and b
- also has resolvers a and b
- has only resolver c.
- If this file exists, your system is using the default startup files,
and io-net is running when your system
starts up, the system automatically loads the Qnet module that
/lib/dll/npm-qnet.so points to (npm-qnet-l4_lite.so
by default). For more information, see the
Controlling How Neutrino Starts
chapter of the Neutrino User's Guide.
Qnet doesn't support networking
processors of different endianness. If you need cross-endian
file access, consider using NFS.
Don't use the options bind=en and resolve=dns
together; that combination is invalid.
"Network protocol modules
in the Utilities Summary
Using Qnet for Transparent
in the Neutrino User's Guide
Native Networking (Qnet)
in System Architecture
Transparent Distributed Processing Using
in the Neutrino Programmer's Guide