Cisco common debug commands

Common Cisco Troubleshooting commands

SNMP

R2#debug snmp packets

EIGRP

#debug eigrp packets query detail reply detail

OSPF

R#debug ip ospf hello
R#debug ip ospf lsa-generation

NTP

### debug on client to see time unable to synchronize
R#debug ntp packet

HSRP

SW2# debug standby terse
SW2# undebug all

STP

SW1# debug spanning-tree events

Debug with access-list xx (source 5.5.5.5)

R5(config)#access-list xx permit 5.5.5.5
R5#debug ip packet xx

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