02-02-2001
Hi. I have installed Solaris 8 and I am trying to configure the network settings. For some reason every time I reboot, my card loses its configuration. I can run ifconfig and the only IP address bound to my card (on either interface) is 127.0.0.1. I can change that to a valid IP address on my network and connect to the network, but I cannot access anything outside. I do not know where to tll UNIX my gateway IP address. I guess this is really two questions. Thanks in advance for any help.
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LEARN ABOUT ULTRIX
ifconfig
ifconfig(8c) ifconfig(8c)
Name
ifconfig - configure network interface parameters
Syntax
/etc/ifconfig interface [ address [ dest_address ] ] [ parameters ]
Description
The command assigns an address to a network interface and/or configures network interface parameters. You must use at boot time to define
the network address of each interface present on a machine. You can also use it at a later time to redefine an interface's address. The
interface parameter is a string of the form: name, unit, for example, en0. The address is either a host name present in the host name data
base, or a DARPA Internet address expressed in the Internet standard dot notation.
Arguments
You can set the following parameters with
up Marks an interface up.
down Marks an interface down. When an interface is marked down, the system does not attempt to transmit messages through that inter-
face.
trailers Enables the use of a trailer link level encapsulation when sending. If a network interface supports trailers, the system, when
possible, encapsulates outgoing messages in a manner that minimizes the number of memory-to-memory copy operations performed by
the receiver.
Although trailers is the default on some network interfaces, the use of trailers is not recommended; failures in trailer negotia-
tion can disrupt network transmissions. See -trailers.
-trailers Disables the use of a trailer link level encapsulation. This is the recommended setting.
promisc Enables the use of the in the promiscuous mode. The promiscuous mode allows the network interface to receive all the packets off
the wire and pass it onto to the packet filter.
-promisc Disables the promiscuous mode of the packet filter. This is the default.
+copyall Sets the interface into copy-all mode (receives packets sent/received by the kernel-resident protocol software [for example, IP,
ARP, DECnet, LAT] on this host).
-copyall Disables copy-all mode. (See for more information aboutut the flag.)
arp Enables the use of the Address Resolution Protocol in mapping between network level addresses and link level addresses. This is
the default. This is currently implemented for mapping between DARPA Internet addresses and 10Mb/s Ethernet addresses.
-arp Disables the use of the Address Resolution Protocol.
debug Enables driver-dependent debugging code. Usually, this turns on extra console error logging.
-debug Disables driver dependent debugging code.
netmask Specifies how many bits of the address you wish to reserve for subdividing Class A and B networks into sub-networks. (Inet
only).
dstaddr Specifies the correspondent on the other end of a point to point link.
broadcast Specifies the address you wish to use to represent broadcasts to the network.
The command displays the current configuration for a network interface when no optional parameters are supplied.
Only the superuser can modify the configuration of a network interface.
Diagnostics
The command returns messages indicating the specified interface does not exist, the requested address is unknown, the user tried to alter
an interface's configuration but is not privileged.
See Also
netstat(1), intro(4n), packetfilter(4), MAKEDEV(8), pfconfig(8c), pfstat(8), rc(8)
ifconfig(8c)