IPv4 and IPv6 – most boring topic ever

Unicast Multiccast Broadcast

one to one, one to many, one to all

VLSM – variable length subnet mask for different subnets

Supported Routing Protocol EIGRP OSPF RIPv2 BGP ISIS

RIPv1 and IGRP does not

 

ARP: Protocol used to discover mac address to IP address mappings

DHCP: Discover Offer Request ACK

 

IPv6 Addressing

Golobal Unicast – 2000::/3

48 16 subnet prefix

64 bits host address

Router 1

config t

ipv6 unicast-routing

int f0/0

ipv6 address 2001::1/64

int f1/1

ipv6 address 2001:1::1/64

exit

ipv6 route 2001:2::/64 2001::2

do show ipv6 int brief (to verify)

 

Router 2

config t

ipv6 unicast-routing

int f0/0

ipv6 address 2001::1/64

exit

ipv6 route 2001:1::/64

 

[pc1] — [r1]—–[r2]–[pc2]

ping pc1 from pc2

can ping

 

eui 64 generated host address based on MAC address value

if you enable ipv6 on router link local address will be generated.

 

layer 2 addressing

ipv6 nd neighbor discovery

host to host

message sent to a remote host asking for link layer address is neighbor advertisement

host to router

host router solicitation rs message sent to discover routers on local link

router advertisement message to a router solicitation with network router information

ipv6 dhcp

stateful or stateless dhcp

stateful

solicit advertise request reply

stateless slaac host use icmpv6 message to discover prefix info

router solicitation router advertisement

 

 

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