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ARP -s inet_addr eth_addr [if_addr]
ARP -d inet_addr [if_addr]
ARP -a [inet_addr] [-N if_addr] [-v]
 -a            Í¨¹ýѯÎʵ±Ç°Ð­ÒéÊý¾Ý£¬ÏÔʾµ±Ç° ARP Ïî¡£Èç¹ûÖ¸¶¨ inet_addr£¬ÔòÖ»ÏÔʾָ¶¨¼ÆËã»úµÄ IP
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 -g            Óë -a Ïàͬ¡£
 -v            ÔÚÏêϸģʽÏÂÏÔʾµ±Ç° ARP Ïî¡£ËùÓÐÎÞЧÏîºÍ»·»Ø½Ó¿ÚÉϵÄÏî¶¼½«ÏÔʾ¡£
 inet_addr     Ö¸¶¨ Internet µØÖ·¡£
 -N if_addr    ÏÔʾ if_addr Ö¸¶¨µÄÍøÂç½Ó¿ÚµÄ ARP Ïî¡£
 -d            É¾³ý inet_addr Ö¸¶¨µÄÖ÷»ú¡£inet_addr ¿ÉÒÔÊÇͨÅä·û *£¬ÒÔɾ³ýËùÓÐÖ÷»ú¡£
 -s            Ìí¼ÓÖ÷»ú²¢ÇÒ½« Internet µØÖ· inet_addrÓëÎïÀíµØÖ· eth_addr
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 eth_addr      Ö¸¶¨ÎïÀíµØÖ·¡£
 if_addr       Èç¹û´æÔÚ£¬´ËÏîÖ¸¶¨µØÖ·×ª»»±íÓ¦ÐÞ¸ÄµÄ½Ó¿ÚµÄ Internet µØÖ·¡£Èç¹û²»´æÔÚ£¬ÔòʹÓõÚÒ»¸öÊÊÓõĽӿڡ£
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 > arp -s 123.253.68.209 00:19:56:6F:87:D2
 > arp -a                                  .... ÏÔʾ ARP ±í¡£
µ«ÊÇarp -s
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211.144.68.254 00:12:D9:32:BF:44
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Linux PPP Êý¾ÝÊÕ·¢Á÷³Ì

Linux PPP Êý¾ÝÊÕ·¢Á÷³Ì
                      
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   chmod 777 *  // °ÑbinĿ¼ÏµÄËùÓÐÎļþµÄȨÏÞÉèÖÃ×î´ó£¬·ñÔò½«²»ÄÜÔËÐÐ
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ubuntu linux ppp ²¦ºÅ GPRS

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1.ʹÓÃÃüÁî pppd call somescript µÄ·½Ê½
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#mkdir -p code/{branches,tags,trunk}
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linux ¶¨Ê±ÈÎÎñ crontabµÄÓ÷¨

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crontabµÄÓ÷¨---linux¶¨Ê±ÈÎÎñ
Step 1:
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