ccna cost canada

ccna cost canada.denytcp2016:1lll::/64host2018:2222::2222eqwww(12matches)sequence10 and the number of packets matching the statement and the number of the statement in the IPv6 ACL szpt deny icmp 2016:2222::/64 host 2017: 1212::2 (5 matches) sequence 20 deny icmp 2016:2222:764 host 2018:2222::2 (5 matches) sequence 30 deny tcp 2016:2222::/64 host 2017:1212::2 eq telnet log (1 match) sequence 40 deny tcp 2016:2222::/64 host 2018:2222::2 eq telnet log (1 match) sequence 50 permit ipv6 any any (77 matches) sequence60The above output shows the description of each IPv6ACL statement defined on router R2 with the name szpt. The number in parentheses indicates the number of packets matching the condition, and the number after each line is the number of the conditional statement, and the default numbering interval is 10o(3) Check the interface status R2#showipv6 interface serial0/0/0 Serial0/0/0 is up, line protocol is up IPv6 is enabled,link-local address is FE80::FA72:EAFF:FE69:1C78 No Virtual link-local address(es): global unicast address(es): 2017:1212::2,subnet is 2017:1212::/64(partial output is omitted here) Inputfeatures: Access List Interface input features: ACL applied Inbound accesslist szpt//Interface inbound name of applied ACL (partial output is omitted here)The above output indicates that the IPv6ACLszpto is applied in the inbound direction of interface S0/0/0.Chapter 10 DHCPEach networked device (router, switch, computer, server, printer, etc.) requires a unique IP address. Network administrators assign IP addresses to network devices either statically or through DHCP. In large-scale networks, manually assigning IP addresses places a significant burden on the network administrator, while DHCP dynamically assigns IP addresses reduces the administrator's workload, ensures continuity and consistency in IP address assignment, and increases work flexibility. DHCP can be used in both IPv4 and IPv6 networks to assign IP addresses and other information to network devices. DHCP Snooping technology enables DHCP security. This chapter discusses the working process of DHCPv4 and DHCPv6, relay agents, DHCPSnooping, and related configurations.10.1 DHCPv4 Overview10.1.1 DHCPv4 ProcessIf the location of an employee's computer changes frequently, the corresponding IP address must also be updated frequently, resulting in increasingly complex network configurations. DHCP (DynamicHostConfigurationProtocol) was developed to meet these needs. DHCP works in a client/server mode based on UDP (server operating port number 67, client operating port 68). DHCPv4 provides a way to dynamically assign IPv4 addresses to clients, and the server can automatically assign IPv4 addresses to hosts from a pre-defined pool of IPv4 addresses. DHCPv4 includes three different address allocation mechanisms to allow flexible allocation of IPv4 addresses.