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BRIDGE(4) FreeBSD Kernel Interfaces Manual BRIDGE(4)

bridge
ºê¸´ÁöÀÇ ¼­Æ÷Æ®

¹öÁ¯ 2.2. 8 À¸·ÎºÎÅÍ´Â, FreeBSD ´Â ÀÌ´õ³Ý(ethernet)Çü ÀÎÅÍÆäÀ̽º¿¡¼­ÀÇ ºê¸´Áö¸¦ ¼­Æ÷Æ®ÇÕ´Ï´Ù. ÀÌ°ÍÀº Ä¿³Î ¼³Á¤ ÆÄÀÏ·Î ´ÙÀ½ÀÇ ¿É¼ÇÀ» »ç¿ëÇÏ´Â °ÍÀ¸·Î ½ÇÇöµË´Ï´Ù.
    options BRIDGE
±×¸®°í 2 °³(»ì)ÀÇ sysctl º¯¼ö·Î Á¦¾îµË´Ï´Ù:
    net.link.ether.bridge
ºê¸´Áö¸¦ À¯È¿ÇÏ°Ô ÇÏ·Á¸é 1 À¸·Î ¼³Á¤ÇØ, ¹«È¿·Î ÇÏ·Á¸é 0 À¸·Î ¼³Á¤ÇØ ÁÖ¼¼¿ä.
    net.link.ether.bridge_ipfw
ºê¸´Áö µÈ ÆÐŶ¿¡ ´ëÇؼ­ ipfw ÇÊÅ͸µÀ» À¯È¿ÇÏ°Ô ÇÏ·Á¸é 1 À¸·Î ¼³Á¤ÇØ ÁÖ¼¼¿ä. ipfw ·êÀº IP ÆÐŶ ¿¡ ´ëÇؼ­¸¸ Àû¿ëµÇ´Â °Í¿¡ ÁÖÀÇÇØ ÁÖ¼¼¿ä. IP ÀÌ¿ÜÀÇ ÆÐŶÀº µðÆúÆ®ÀÇ ipfw ·ê(65535¹ø)¿¡ µû¸¨´Ï´Ù. ARP ³ª ±× ¿ÜÀÇ IP ÀÌ¿ÜÀÇ ÆÐŶÀÌ ºê¸´Áö¸¦ ºüÁ® ³ª°¡µµ·Ï(µíÀÌ) ÇÏ°í ½ÍÀº °æ¿ì¿¡´Â, ÀÌ°ÍÀº allow ·êÀÌ ¾Æ´Ï¸é ¾ÈµË´Ï´Ù.

ºê¸´ÁöÀÇ À§»ó±âÇÏÇп¡ ·çÇÁ¸¦ ¸¸µéÁö ¾Ê°Ô Á¶½ÉÇÏÁö ¾ÊÀ¸¸é µÇÁö ¾Ê½À´Ï´Ù. Ä¿³ÎÀº, ·çÇÁ¸¦ °ËÃâÇßÀ» ¶§¿¡ ¸î°³ÀÇ ÀÎÅÍÆäÀ̽º¸¦ ¹«È¿·Î ÇÏ´Â, ¿ø½ÃÀûÀÎ ÇüÅÂÀÇ ·çÇÁ °ËÃ⠱ⱸ ¹Û¿¡ ¼­Æ÷Æ®ÇÏ°í ÀÖÁö ¾Ê½À´Ï´Ù. ½ºÆÄ´×Æ®¸®¾Æ¸£°í¸®ÁòÀ» ½ÇÇöÇÏ´Â demon¸¦ À§ÇÑ ¼­Æ÷Æ®´Â, ÇöÀç ÁغñµÇ¾î ÀÖÁö ¾Ê½À´Ï´Ù.
ºê¸´Áö¸¦ À¯È¿ÇÏ°Ô Çϸé(ÀÚ), ÀÎÅÍÆäÀ̽º´Â ¹«Â÷º°(promiscuous) ¸ðµå°¡ µÇ¹Ç·Î, ¹Ù¶÷Á÷ÇÏÁö ¾ÊÀº Åë½ÅÀ» ¼ö½ÅÇØ ÇÊÅÍ¿¡¼­´Â ÃàºÐ , ½Ã½ºÅÛ¿¡ ºÎÇϸ¦ °Ì´Ï´Ù.
ÀÎÅÍÆäÀ̽ºÀÇ Å¬·¯½ºÅÍ¿¡ ´ëÇØ ¼±ÅÃÀûÀ¸·Î ºê¸´Áö¸¦ À¯È¿ÇÏ°Ô ÇÏ´Â È®Àå ±â´É ¿¡ ´ëÇؼ­´Â, ¾ÆÁ÷ ÀÛ¾÷ÁßÀÔ´Ï´Ù.
¸ðµç ÀÎÅÍÆäÀ̽º°¡ ºê¸´Áö¸¦ ¼­Æ÷Æ®ÇÏ°í ÀÖ´Â °ÍÀº ¾Æ´Õ´Ï´Ù. ÇöÀç ``ed'', ``de'', ``ep'', ``fxp'', ``lnc''ÀÎÅÍÆäÀ̽º·Î µ¿ÀÛÇÕ´Ï´Ù.

ip(4), ipfw(8), sysctl(8)

bridge ¿¡ ÀÇÇÑ ºê¸´Áö´Â FreeBSD 2.2. 8 À¸·Î Luigi Rizzo <luigi@iet.unipi.it> ¿¡ ÀÇÇØ µµÀԵǾú½À´Ï´Ù.
September 28, 1998 FreeBSD 12.0-RELEASE

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