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Network Configuration—BasicsOption NameDescriptionPOLLING Drivers supports POLLING (explained in chapter 6)VLAN_HWCSUMTSO4TSO6TSOLRORX and TX checksum offloading on VLANs is supportedTCP Segmentation Offloading is supportedTCP6 Segmentation Offloading is supportedBoth TSO4 and TSO6 are supportedTCP Large Receive Offloading is supportedIn ifconfig(8) output, the media field displays the current media options for thenetwork interface card. In the previous example, the NIC was set to autoselect andhas negotiated 100Base-TX full-duplex with the switch that it was connected to.Your NIC may support different media options depending on its hardwarecapabilities. These capabilities may differ from one NIC to other. To see a list of NICcapabilities you may consult driver's manual pages (for example man fxp) or useifconfig with -m flag and ifconfig displays a list of supported media options afterthe interface status:# ifconfig fxp0fxp0: flags=8843 mtu 1500options=binet6 fe80::20c:29ff:fefd:f61d%em0 prefixlen 64 scopeid 0x1inet 198.168.0.5 netmask 0xffffff00 broadcast 198.18.0.255ether 00:0c:29:fd:f6:1dmedia: Ethernet autoselect (100baseTX )status: activesupported media:media autoselectmedia 100baseTX mediaopt full-duplexmedia 100baseTXmedia 10baseT/UTP mediaopt full-duplexmedia 10baseT/UTPmedia 100baseTX mediaopt hw-loopbackOnce you configure a network interface with an IP, IPX, or AppleTalk address,the interface will be automatically marked as up, the routing entry will be addedto the routing table, and system starts transmitting and receiving traffic on theconfigured interface.The interface can be disabled using the ifconfig's down option:# ifconfig bge0 down[ 104 ]