Total Mac Addresses for this criterion: 2 Listing 1 shows what the MAC address table would look like at this point. It would then perform a lookup of its MAC address table to determine whether it knows which port to send the server's traffic to in this case it does, so it sends the return traffic out only its Fa0/3 port (PC1), without flooding. The switch would receive the frame and create a new entry in its MAC address table for the server's MAC address (Server -> Fa0/2). Assuming that the server wants to respond to PC1, it would sent a new frame back toward the switch. The switch would then perform a lookup on its MAC address table to determine whether it knows which port to send the traffic to since no matching entries exist in the switch's tables, it would flood the frame out all of its interfaces (except the receiving port).Д«ecause the frame was sent out to all of the switch's other ports, it would be received by the target server. The first thing the switch would do when receiving the traffic is create a new entry in its MAC address table for PC1's MAC address (PC1 -> Fa0/3). It would encapsulate an Ethernet frame and send it off toward the switch. Now suppose PC1 wants to send traffic to the server that has a MAC address of 00:00:00:00:00:01. In this case, the MAC address table of the switch would be empty (ignoring any system MAC addresses shown in the table by default).

Let's assume that all of the devices are powered on but have not sent any traffic. Show ACLs on g1/1 (When none set shows not set for v4 and nothing for v6): # show ip interface g1/1 | incl access list РЈСЃС‚СЂР°РЅРµРЅРёРµ РЅРµРїРѕР»Р°РґРѕРє ACL Show all configured ACLs: # show ] access-listsДisplay all rules in ACL #10 and how often they matched: # show access-list 10 NAT The v6 syntax of course differs.: (config-if)# ipv6 traffic-filter 23 out Overwrite the used ACL, only one ACL per if + proto + direction!: (config-if)# ip access-group local_only in Remove rule with sequence# from ACL: (config-std-nac1)# no РРЅС‚РµСЂС„РµР№СЃРЅС‹Рµ ACL Enter if-config mode for g1/1: (config)# inter g1/1ДЄpply ACL #23 to outgoing packets, not send by the router: (config-if)# ip access-group 23 outДЄpply ACL #42 to incoming packets: (config-if)# ip access-group 42 in Often shutdown is the default: (config-if)# shutdown Set hostname transmitted as dhcp client to SW2: (config-if)# ip dhcp client client-id asccii SW2Д¬onfigure both interfaces at once: (config)# interface g1/0 - 2Д®n- or Disable interface. Get IPv6 address (and default route) via autoconfig: (config-if)# ipv6 address autoconfig Get IPv4 address via dhcp: (config-if)# ip address dhcp Remove MAC overwrite: (config-if)# no mac addressДЄdd IPv6 address based on MAC to interface: (config-if)# ipv6 address 2001:41d0:8:e115::/64 eui-64 Overwrite MAC address: (config-if)# mac address 1234.5678.90AB Human-readable link description: (config-if)# description Link to Some hostДЄdd IPv4 address to interface: (config-if)# ip address 10.23.42.5 255.255.0.0ДЄdd IPv6 address to interface: (config-if)# ipv6 address 2001:41d0:8:e115::ccc/64

Cisco mac address table filling up