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append="ether=12,0x300,eth0 ether=15,0x340,eth1"
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199.1.2.10 __________ 192.168.2.1 _ __ _ \ | | / _______________ | \/ \/ | \| |/ | | ºô»Úºô¸ô \-------------| ¨¾¤õÀð |-------------------| ¤u§@¯¸ | \_/\_/\_/\_/ |_________| |______________|¦pn³]¸m¹LÂo¨¾¤õÀð¡A¨ÌÂÂ¥i¥Î³o¨Çºô§}¡A¤£¹L±o¨Ï¥ÎIP masquerading¡C¸g¹L³oºØ³]©w¡A¨¾¤õÀð´N·|Âà°e¼Æ¾Ú¥]¡A¨Ã¥[ªþ¹ê»ÚªºIP¦a§}°e©¹ºô»Úºô¸ô¡C ¦bºô¸ô¥dªººô»Úºô¸ôºÝ¡]¥~ºÝ¡^±o³]©w¯u¥¿ªºIP¦a§}¡A¦b¥H¤Óºô¥dªº¤ººÝ³]¬°192.168.2.1¡C³o¬O³o¥x¹q¸£¥N²z/ºôÃöªºIP¦a§}¡C¨ü«OÅ@ªººô¸ô¤ºªº©Ò¦³¨ä¥L¹q¸£§¡¥i¿ï¥Î192.168.2.xxx¤¤ªº¥ô¦ó¤@Ó§@¬°¦a§}¡]±q192.168.2.2 ¨ì192.168.2.254¡^¡C ¦bRedHat Linux ¤¤¡A±o¦b /etc/sysconfig/network-scripts¥Ø¿ý¤U¼W¥[¤@Óifcfg-eth1ÀÉ¡A¥H«K¦b±Ò°Ê®É¡A³q¹L³oÓÀɳ]©wºô¸ô©Mroutingªí¡C ifcfg-eth1ªº°Ñ¼Æ¥i³]©w¦p¤U¡J
#!/bin/sh #>>>Device type: ethernet #>>>Variable declarations: DEVICE=eth1 IPADDR=192.168.2.1 NETMASK=255.255.255.0 NETWORK=192.168.2.0 BROADCAST=192.168.2.255 GATEWAY=199.1.2.10 ONBOOT=yes #>>>End variable declarations¥i¸Õ¥Î³o¨Ç°Ñ¼Æ¨Ï¼Æ¾Ú¾÷»PISP¦Û°Ê³s±µ¡C¤£§«¬Ý¬Ý ipup-pppÀÉ¡C ¦p¥Î¼Æ¾Ú¾÷»Pºô»Úºô¸ô³s±µ¡AISP·|¦b³s±µ®É«ü©w¥~ºÝªºIP¦a§}¡C
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#ifconfig lo Link encap:Local Loopback inet addr:127.0.0.0 Bcast:127.255.255.255 Mask:255.0.0.0 UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1 RX packets:1620 errors:0 dropped:0 overruns:0 TX packets:1620 errors:0 dropped:0 overruns:0 eth0 Link encap:10Mbps Ethernet HWaddr 00:00:09:85:AC:55 inet addr:199.1.2.10 Bcast:199.1.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 TX packets:0 errors:0 dropped:0 overruns:0 Interrupt:12 Base address:0x310 eth1 Link encap:10Mbps Ethernet HWaddr 00:00:09:80:1E:D7 inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 TX packets:0 errors:0 dropped:0 overruns:0 Interrupt:15 Base address:0x350route ªíÀ³¬Ý°_¨Ó¦p¤U¡J
#route -n Kernel routing table Destination Gateway Genmask Flags MSS Window Use Iface 199.1.2.0 * 255.255.255.0 U 1500 0 15 eth0 192.168.2.0 * 255.255.255.0 U 1500 0 0 eth1 127.0.0.0 * 255.0.0.0 U 3584 0 2 lo default 199.1.2.10 * UG 1500 0 72 eth0
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