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Full Discussion: Users logged in through which NIC
Special Forums IP Networking Users logged in through which NIC Post 302072201 by buffoonix on Friday 28th of April 2006 06:59:17 PM
Old 04-28-2006
I am not into AIX.
So options and parameters may differ thereon.
But generally netstat should also on an AIX box
show the local IP addresses used by tcp sockets
(e.g. netstat -an)
Maybe the AIX netstat further offers an option to limit to tcp connections like GNU,
as with -t ?
You could combine this with the who command,
or if you have it on AIX, the lsof command (but I doubt it's available there).

You could also force your users on a certain NIC by using some tcp wrapper
for your network login services (e.g. telnet, rlogin etc.)
On Linux xinetd handles this automatically by conf file entries for those services.
Most commercial Unix vendors will offer a tcp wrapper for their OS free of charge
(e.g. HP-UX does)

If your users connect via SSH you could set the ListenAdress directive in
sshd_config to the IP address (viz. NIC) you want your users to connect to
(by default sshd will listen to all local up NICs)
 

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LEARN ABOUT NETBSD

bnx

BNX(4)							   BSD Kernel Interfaces Manual 						    BNX(4)

NAME

     bnx -- Broadcom NetXtreme II 10/100/1000 Ethernet device

SYNOPSIS

     bnx* at pci?
     brgphy* at mii?

DESCRIPTION

     The bnx driver supports Broadcom's NetXtreme II product family, such as the BCM5706 PCI-X and BCM5708-BCM5709 PCI Express Ethernet con-
     trollers, which includes the following:

     o	 Dell PowerEdge 1950 integrated BCM5708 NIC (10/100/1000baseT)
     o	 Dell PowerEdge 2950 integrated BCM5708 NIC (10/100/1000baseT)
     o	 Dell PowerEdge M710 integrated BCM5709S NIC (1000baseSX)
     o	 HP NC370F PCI-X Multifunction Gigabit server adapter (1000baseSX)
     o	 HP NC370T PCI-X Multifunction Gigabit server adapter (10/100/1000baseT)
     o	 HP NC373F PCI Express Multifunction Gigabit server adapter (1000baseSX)
     o	 HP NC373i PCI Express Multifunction Gigabit embedded server adapter (10/100/1000baseT)
     o	 HP NC380T PCI Express Dual Port Multifunction Gigabit server adapter (10/100/1000baseT)
     o	 IBM xSeries 3550 integrated BCM5708 NIC (10/100/1000baseT)
     o	 IBM xSeries 3650 integrated BCM5708 NIC (10/100/1000baseT)

     The NetXtreme II product family is composed of various Converged NIC (or CNIC) Ethernet controllers which support a TCP Offload Engine (TOE),
     Remote DMA (RDMA), and iSCSI acceleration, in addition to standard L2 Ethernet traffic, all on the same controller.  The following features
     are supported in the bnx driver under NetBSD:

	   IPv4 receive IP/TCP/UDP checksum offload
	   Jumbo frames (up to 9022 bytes)
	   VLAN tag insertion
	   Interrupt coalescing
	   10/100/1000Mbps operation in full-duplex mode
	   10/100Mbps operation in half-duplex mode

     The bnx driver supports the following media types:

     autoselect   Enable autoselection of the media type and options.  The user can manually override the autoselected mode via ifconfig(8).

     10baseT/UTP  Set 10Mbps operation.  The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.  The ifconfig(8) mediaopt option can also be used to select either full-duplex or
		  half-duplex modes.

     1000baseTX   Set 1000baseTX operation over twisted pair.  Only full-duplex mode is supported.

     1000baseSX   Set 1000Mbps (Gigabit Ethernet) operation.  Both full-duplex and half-duplex modes are supported.

     2500baseSX   Set 2500Mbps operation.  Only full-duplex mode is supported.

     The bnx driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

     For more information on configuring this device, see ifconfig(8).

SEE ALSO

     arp(4), brgphy(4), ifmedia(4), intro(4), mii(4), netintro(4), pci(4), ifconfig(8)

HISTORY

     The bnx device driver first appeared in NetBSD 4.0.

BSD
								 December 10, 2010							       BSD
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