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:8&6FLHD¢\N=EDL§cBIK8>IKJH257L6VhK2BDLb^±=BJœ2c½IK8MLJ 0
hi=B8MLH2J¥m>67I4hiI4Dt=ACJI4D®DÇxÄÉCè£é f 26FL6F2cŸ=JIiY>¤CI4D2257IB¡ /10 2ACJI4DHD¢^±=B5757=?œTI4A /10 LO>Ib57IK8>cBLO9=Id678>67L6V2cãêë!ìYí“î¦í†ï!ðYí†ñ5ò!ë1îgÏ¡C2tcBJ=BX>mo2BA>ACJI4D®Dm>JIiY>¤ƒ¡>2c¢678MLIKJ^‘2BhiIDIKLK¡>2c6781LIKJ^±2BhiI4D ¬ '>=BJ2cB673BIK8t^±=BJœ2c-IK8MLJ 0 ¡167LHD_2BA>ACJI4DHD_m>JIiY>¤CI4D_JIKm>JI4DIK8MLLO>IJH2cBI
=JHhiI4D2m[Dœ¢O>=EDI§AC6FDLJ6 / X>L6F=B8@LJIKI¢6FD§JIKm>JI4DIK8MLI4A /10 LO[2I¢678[hi=B\]678>c
678MLIKJ^‘2BhiIdJIKm>JI4DIK81LHD§LO>IbJ=BX>LIKJKÔÞDńm[2LcB=B678>cN678MLIKJ²
^±2BhiI4D§JIKm>JI4DIK8ML¤LO>IdJ=BX>LIKJKÔÞDhHO>675FACJIK8 ¬ €^±=BJœ2c]IK8MLJ 0 k¥æBÊ|m Ú ÉÏã¢2¥\tX>57L6FhK2BDL¢A>2JHhiIt2BA>ACJI4D®D¤m>JIiY>¤©6FD§LO>It57=B8>cBI4DL¤678>67L6F2c f 2co2IKJ¤^a=BJœ+2c
IK8MLJ67I4DägLO[2I]m[2Bh®¦BIKLKÔÞD§D=BX>JHhiIN2BA>ACJI4DHDK¡(67LHDcBJ=BX>m&2BA>ACJI4DHDdm>JIiY>¤½6FDdLO>I]57=B8>cBI4DL
678>67L6F2coLO[2INm[2BhH¦BIKLKÔÞDdcBJ=BX>m¹2BA>ACJI4D®DK¡2I¥6781LIKJ^±2BhiI¥=B8°œ¢O>6FhHO
LO>I@m[2BhH¦BIKL]œ+2BD§JI4hiIK673BI4Ae6FDt678[hi57X[ACI4A&678&67LHD§678[hi=B\N678>cª6781LIKJ^±2BhiI9DHIKL ¬ hi=Bm 0 =LcB=B6F8>c¥678MLIKJ^‘2BhiIbDIKL f '(67cBX>JIbj ¬ jEg ¬
iif
S=0.0.0.0/0
G=224.0.1.2/32
oifs
1. Destination lookup
2. If packet received on iif,
forward on all (oifs - iif)
'(67cBX>JIbj ¬ j,T'[=BJœ2cŸ2§\¢X>57L6VhK2BDLm[2BhH¦BIKL¢^±=BJ§D=BX>JHhiIÆR€´:2c©\¢X>5FL6FhK2BDLbJ=BX>L6F8>c©m>J=BL=Chi=B5FD§AC6Z¸ŒIKJtD5F67cBOML5 0 678&LO>IŸL 0 mxI4D§=I 0 cBIK8>IKJH2