First Hop Redundancy Protocols Configuration Guide Cisco IOS Release 15MT 1 03UHGLUHFWPHVVDJHVDUHDXWRPDWLFDOOHQDEOHGRQLQWHUIDFHVFRQI ID: 412346
Download Pdf The PPT/PDF document "HSRP Support for ICMP Redirects" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
HSRP Support for ICMP Redirectsµ)LQGLQJ)HDWXUH,QIRUPDWLRQSDJHµ,QIRUPDWLRQ$ERXW+6536XSSRUWIRU,&035HGLUHFWVSDJHµ+RZWR&RQILJXUH+6536XSSRUWIRU,&035HGLUHFWVSDJHµ&RQILJXUDWLRQ([DPSOHVIRU+6536XSSRUWIRU,&035HGLUHFWVSDJHµ$GGLWLRQDO5HIHUHQFHVSDJHµ)HDWXUH,QIRUPDWLRQIRU+6536XSSRUWIRU,&035HGLUHFWVSDJHFinding Feature InformationRXUVRIWZDUHUHOHDVHPD\QRWVXSSRUWDOOWKHIHDWXUHVGRFXPHQWHGLQWKLVPRGXOH)RUWKHODWHVWFDYHDWVDQGIHDWXUHLQIRUPDWLRQVHH%XJ6HDUFK7RRODQGWKHUHOHDVHQRWHVIRU\RXUSODWIRUPDQGVRIWZDUHUHOHDVH7RILQGLQIRUPDWLRQDERXWWKHIHDWXUHVGRFXPHQWHGLQWKLVPRGXOHDQGWRVHHDOLVWRIWKHUHOHDVHVLQZKLFKHDFKIHDWXUHLVVXSSRUWHGVHHWKHIHDWXUHLQIRUPDWLRQWDEOH8VH&LVFR)HDWXUH1DYLJDWRUWRILQGLQIRUPDWLRQDERXWSODWIRUPVXSSRUWDQG&LVFRVRIWZDUHLPDJHVXSSRUW7RDFFHVV&LVFR)HDWXUH1DYLJDWRUJRWRZZZFLVFRFRPJRFIQ$QDFFRXQWRQ&LVFRFRPLVQRWUHTXLUHGInformation About HSRP Support for ICMP RedirectsHSRP Support for ICMP Redirect Messages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irst Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 1 ,&03UHGLUHFWPHVVDJHVDUHDXWRPDWLFDOO\HQDEOHGRQLQWHUIDFHVFRQILJXUHGZLWK+6537KLVIXQFWLRQDOLW\ZRUNVE\ILOWHULQJRXWJRLQJ,&03UHGLUHFWPHVVDJHVWKURXJK+653ZKHUHWKHQH[WKRS,3DGGUHVVPD\EHFKDQJHGWRDQ+653YLUWXDO,3DGGUHVVICMP Redirects to Active HSRP Devices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igure 1: Network Supporting the HSRP ICMP Redirection Filter ,IWKHKRVWZDQWVWRVHQGDSDFNHWWRDQRWKHUKRVWRQ1HW'WKHQLWILUVWVHQGVLWWRLWVGHIDXOWJDWHZD\WKHYLUWXDO,3DGGUHVVRI+653JURXS7KHIROORZLQJLVWKHSDFNHWUHFHLYHGIURPWKHKRVW GHVW0$& +653JURXSYLUWXDO0$&VRXUFH0$& +RVW0$&GHVW,3 KRVWRQQHW',3VRXUFH,3 +RVW,3'HYLFH5UHFHLYHVWKLVSDFNHWDQGGHWHUPLQHVWKDWGHYLFH5FDQSURYLGHDEHWWHUSDWKWR1HW'VRLWSUHSDUHVWRVHQGDUHGLUHFWPHVVDJHWKDWZLOOUHGLUHFWWKHKRVWWRWKHUHDO,3DGGUHVVRIGHYLFH5EHFDXVHRQO\UHDO,3DGGUHVVHVDUHLQLWVURXWLQJWDEOH First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 2 HSRP Support for ICMP Redirects ICMP Redirects to Active HSRP Devices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edirects to Passive HSRP Devices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edirects to Non-HSRP Devices,&03UHGLUHFWVWRGHYLFHVQRWUXQQLQJ+653RQWKHLUORFDOLQWHUIDFHDUHSHUPLWWHG1RUHGXQGDQF\LVORVWLIKRVWVOHDUQWKHUHDO,3DGGUHVVRIQRQ+653GHYLFHV,QWKH1HWZRUN6XSSRUWLQJWKH+653,&035HGLUHFWLRQ)LOWHUILJXUHUHGLUHFWLRQWRGHYLFH5LVDOORZHGEHFDXVH5LVQRWUXQQLQJ+653,QWKLVFDVHWKHQH[WKRS,3DGGUHVVLVXQFKDQJHG7KHVRXUFH,3DGGUHVVLVFKDQJHGGHSHQGHQWXSRQWKHGHVWLQDWLRQ0$&DGGUHVVRIWKHRULJLQDOSDFNHWRXFDQVSHFLI\WKHQRVWDQGE\UHGLUHFWXQNQRZQFRPPDQGWRVWRSWKHVHUHGLUHFWVIURPEHLQJVHQWPassive HSRP Advertisement Messages3DVVLYH+653GHYLFHVVHQGRXW+653DGYHUWLVHPHQWPHVVDJHVERWKSHULRGLFDOO\DQGZKHQHQWHULQJRUOHDYLQJWKHSDVVLYHVWDWH7KXVDOO+653GHYLFHVFDQGHWHUPLQHWKH+653JURXSVWDWHRIDQ\+653GHYLFHRQWKH First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 3 HSRP Support for ICMP Redirects ICMP Redirects to Passive HSRP Devices QHWZRUN7KHVHDGYHUWLVHPHQWVLQIRUPRWKHU+653GHYLFHVRQWKHQHWZRUNRIWKH+653LQWHUIDFHVWDWHDVIROORZVµ$FWLYH§,QWHUIDFHKDVDWOHDVWRQHDFWLYHJURXS$VLQJOHDGYHUWLVHPHQWLVVHQWRXWZKHQWKHILUVWJURXSEHFRPHVDFWLYHµ'RUPDQW§,QWHUIDFHKDVQR+653JURXSV$VLQJOHDGYHUWLVHPHQWLVVHQWRQFHZKHQWKHODVWJURXSLVUHPRYHGµ3DVVLYH§,QWHUIDFHKDVDWOHDVWRQHQRQDFWLYHJURXSDQGQRDFWLYHJURXSV$GYHUWLVHPHQWVDUHVHQWRXWSHULRGLFDOO\RXFDQDGMXVWWKHDGYHUWLVHPHQWLQWHUYDODQGKROGGRZQWLPHXVLQJWKHVWDQGE\UHGLUHFWWLPHUVFRPPDQGICMP Redirects Not Sent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ow to Configure HSRP Support for ICMP RedirectsEnabling HSRP Support for ICMP Redirect Messages%\GHIDXOW+653ILOWHULQJRI,&03UHGLUHFWPHVVDJHVLVHQDEOHGRQGHYLFHVUXQQLQJ+6533HUIRUPWKLVWDVNWRUHHQDEOHWKLVIHDWXUHRQ\RXUGHYLFHLILWLVGLVDEOHG First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 4 HSRP Support for ICMP Redirects ICMP Redirects Not Sent SUMMARY STEPS1.HQDEOH2.FRQILJXUHWHUPLQDO3.LQWHUIDFHW\SHQXPEHU4.VWDQGE\UHGLUHFWWLPHUVDGYHUWLVHPHQWKROGGRZQ@XQNQRZQ@5.HQG6.VKRZVWDQGE\UHGLUHFWLSDGGUHVV@LQWHUIDFHW\SHLQWHUIDFHQXPEHU@DFWLYH@SDVVLYH@WLPHUV@DETAILED STEPS PurposeCommand or Action(QDEOHVSULYLOHJHG(;(&PRGHHQDEOHStep 1Example: 'HYLFH!HQDEOHµ(QWHU\RXUSDVVZRUGLISURPSWHG(QWHUVJOREDOFRQILJXUDWLRQPRGHFRQILJXUHWHUPLQDOExample: 'HYLFHFRQILJXUHWHUPLQDOStep 2&RQILJXUHVDQLQWHUIDFHW\SHDQGHQWHUVLQWHUIDFHFRQILJXUDWLRQPRGHLQWHUIDFHW\SHQXPEHUExample: 'HYLFHFRQILJLQWHUIDFH*LJDELW(WKHUQHWStep 3(QDEOHV+653ILOWHULQJRI,&03UHGLUHFWPHVVDJHVVWDQGE\UHGLUHFWWLPHUVDGYHUWLVHPHQWKROGGRZQ@XQNQRZQ@Step 4µRXFDQDOVRXVHWKLVFRPPDQGLQJOREDOFRQILJXUDWLRQPRGHZKLFKHQDEOHV+653ILOWHULQJRI,&03UHGLUHFWPHVVDJHVRQDOOLQWHUIDFHVFRQILJXUHGIRU+653Example: 'HYLFHFRQILJLIVWDQGE\UHGLUHFW5HWXUQVWRSULYLOHJHG(;(&PRGHHQGExample: 'HYLFHFRQILJLIHQGStep 52SWLRQDO'LVSOD\V,&03UHGLUHFWLQIRUPDWLRQRQLQWHUIDFHVFRQILJXUHGZLWK+653VKRZVWDQGE\UHGLUHFWLSDGGUHVV@LQWHUIDFHW\SHLQWHUIDFHQXPEHU@DFWLYH@SDVVLYH@WLPHUV@Example: 'HYLFHVKRZVWDQGE\UHGLUHFWStep 6 First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 5 HSRP Support for ICMP Redirects Enabling HSRP Support for ICMP Redirect Messages Configuration Examples for HSRP Support for ICMP RedirectsExample: Configuring HSRP Support for ICMP Redirect MessagesDevice A Configuration§Active for Group 1 and Standby for Group 2 'HYLFHFRQILJLQWHUIDFH*LJDELW(WKHUQHW'HYLFHFRQILJLILSDGGUHVV'HYLFHFRQILJLIVWDQGE\UHGLUHFW'HYLFHFRQILJLIVWDQGE\SULRULW\'HYLFHFRQILJLIVWDQGE\SUHHPSWGHOD\PLQLPXP'HYLFHFRQILJLIVWDQGE\LS'HYLFHFRQILJLIVWDQGE\SULRULW\'HYLFHFRQILJLIVWDQGE\SUHHPSWGHOD\PLQLPXP'HYLFHFRQILJLIVWDQGE\LSDevice B Configuration§Standby for Group 1 and Active for Group 2 'HYLFHFRQILJLQWHUIDFH*LJDELW(WKHUQHW'HYLFHFRQILJLILSDGGUHVV'HYLFHFRQILJLIVWDQGE\UHGLUHFW'HYLFHFRQILJLIVWDQGE\SULRULW\'HYLFHFRQILJLIVWDQGE\SUHHPSWGHOD\PLQLPXP'HYLFHFRQILJLIVWDQGE\LS'HYLFHFRQILJLIVWDQGE\SULRULW\'HYLFHFRQILJLIVWDQGE\SUHHPSWGHOD\PLQLPXP'HYLFHFRQILJLIVWDQGE\LSAdditional ReferencesRelated Documents Document TitleRelated Topic&LVFR,260DVWHU&RPPDQGV/LVW$OO5HOHDVHV&LVFR,26FRPPDQGV&LVFR,26)LUVW+RSUHGXQGDQF\3URWRFROV&RPPDQG5HIHUHQFH+653FRPPDQGVFRPSOHWHFRPPDQGV\QWD[FRPPDQGPRGHFRPPDQGKLVWRU\GHIDXOWVXVDJHJXLGHOLQHVDQGH[DPSOHV¯+653IRU,3Y°PRGXOH+653IRU,3Y+RW6WDQGE\5RXWHU3URWRFRO)UHTXHQWO\$VNHG4XHVWLRQV7URXEOHVKRRWLQJ+653 First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 6 HSRP Support for ICMP Redirects Configuration Examples for HSRP Support for ICMP Redirects Standards TitleStandards1RQHZRUPRGLILHGVWDQGDUGVDUHVXSSRUWHGE\WKLVIHDWXUHDQGVXSSRUWIRUH[LVWLQJVWDQGDUGVKDVQRWEHHQPRGLILHGE\WKLVIHDWXUHMIBs MIBs LinkMIBs7RORFDWHDQGGRZQORDG0,%VIRUVHOHFWHGSODWIRUPV&LVFRVRIWZDUHUHOHDVHVDQGIHDWXUHVHWVXVH&LVFR0,%/RFDWRUIRXQGDWWKHIROORZLQJ85/KWWSZZZFLVFRFRPJRPLEV&,6&2+6530,%&,6&2+653(;70,%RFCs TitleRFCs,QWHUQHW&RQWURO0HVVDJH3URWRFRO5)&,3$XWKHQWLFDWLRQ8VLQJ.H\HG0'5)&&LVFR+RW6WDQGE\5RXWHU3URWRFRO5)&Technical Assistance LinkDescriptionKWWSZZZFLVFRFRPFLVFRZHEVXSSRUWLQGH[KWPO7KH&LVFR6XSSRUWDQG'RFXPHQWDWLRQZHEVLWHSURYLGHVRQOLQHUHVRXUFHVWRGRZQORDGGRFXPHQWDWLRQVRIWZDUHDQGWRROV8VHWKHVHUHVRXUFHVWRLQVWDOODQGFRQILJXUHWKHVRIWZDUHDQGWRWURXEOHVKRRWDQGUHVROYHWHFKQLFDOLVVXHVZLWK&LVFRSURGXFWVDQGWHFKQRORJLHV$FFHVVWRPRVWWRROVRQWKH&LVFR6XSSRUWDQG'RFXPHQWDWLRQZHEVLWHUHTXLUHVD&LVFRFRPXVHU,'DQGSDVVZRUG First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 7 HSRP Support for ICMP Redirects Additional References Feature Information for HSRP Support for ICMP Redirects7KHIROORZLQJWDEOHSURYLGHVUHOHDVHLQIRUPDWLRQDERXWWKHIHDWXUHRUIHDWXUHVGHVFULEHGLQWKLVPRGXOH7KLVWDEOHOLVWVRQO\WKHVRIWZDUHUHOHDVHWKDWLQWURGXFHGVXSSRUWIRUDJLYHQIHDWXUHLQDJLYHQVRIWZDUHUHOHDVHWUDLQ8QOHVVQRWHGRWKHUZLVHVXEVHTXHQWUHOHDVHVRIWKDWVRIWZDUHUHOHDVHWUDLQDOVRVXSSRUWWKDWIHDWXUH8VH&LVFR)HDWXUH1DYLJDWRUWRILQGLQIRUPDWLRQDERXWSODWIRUPVXSSRUWDQG&LVFRVRIWZDUHLPDJHVXSSRUW7RDFFHVV&LVFR)HDWXUH1DYLJDWRUJRWRZZZFLVFRFRPJRFIQ$QDFFRXQWRQ&LVFRFRPLVQRWUHTXLUHGTable 1: Feature Information for HSRP Support for ICMP Redirects Feature InformationReleasesFeature Name7KH+653VXSSRUWIRU,&035HGLUHFWVIHDWXUHHQDEOHV,&03UHGLUHFWLRQRQLQWHUIDFHVFRQILJXUHGZLWK+6537KHIROORZLQJFRPPDQGVZHUHLQWURGXFHGRUPRGLILHGE\WKLVIHDWXUHGHEXJVWDQGE\HYHQWGHEXJVWDQGE\HYHQWVLFPSVKRZVWDQGE\VWDQGE\UHGLUHFWV7666&LVFR,26;(5HOHDVH&LVFR,26;(5HOHDVH6+6536XSSRUWIRU,&035HGLUHFWV First Hop Redundancy Protocols Configuration Guide, Cisco IOS Release 15M&T 8 HSRP Support for ICMP Redirects Feature Information for HSRP Support for ICMP Redirects