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cisco:l2_notes
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| cisco:l2_notes [2025/07/16 13:28] – adminent | cisco:l2_notes [2025/08/05 04:01] (current) – adminent | ||
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| =====Layer 2 Notes===== | =====Layer 2 Notes===== | ||
| + | ====ARP==== | ||
| + | * Address Resolution Protocol. Maps MAC addresses to IPs. | ||
| + | * Default ARP timeout is four hours or 14,400 seconds. | ||
| + | * Change default ARP timeout, in seconds. | ||
| + | < | ||
| + | r1(config-if)# | ||
| + | * To make an ARP entry permanent, then use SNAP (Subnetwork Access Protocol). | ||
| + | < | ||
| + | * To view the ARP table | ||
| + | < | ||
| + | * To clear the ARP table | ||
| + | < | ||
| - | AAA | + | ==== |
| + | |||
| + | ====AAA==== | ||
| aaa new-model | aaa new-model | ||
| aaa authentication login default group radius local | aaa authentication login default group radius local | ||
| Line 1596: | Line 1610: | ||
| ? show track 1 | ? show track 1 | ||
| ○ should show "over threshold" | ○ should show "over threshold" | ||
| - | ○ shoud show "state down" | + | ○ should |
| ? show ip route | ? show ip route | ||
| ○ WAN route is now used | ○ WAN route is now used | ||
| - | ===SDM Template=== | + | ====SDM Template==== |
| Switch Database Management | Switch Database Management | ||
| < | < | ||
cisco/l2_notes.1752672533.txt.gz · Last modified: by adminent
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