IPV6
when using link local addresses to route packets what must be added to the ipv6 route command?
the exit interface
In ipv6 what does the interface id repressent?
the host bits
In ipv6 what does the global routing prefix represent?
the network bits
In IPv6 what does NDP do?
Allows hosts to dynamically discover one another
What number can you remove from the IPv6 field to shorten it?
Any leading zeros (ex. :0012 changes to :12 or :0000 changes to :0)
What does eui-64 do?
Automatically create the network identifier portion of the ip.
What does a global routing prefix represent?
The network
What prefix does an IPv6 multicast ip start with?
FF00::
what is the ipv6 multicast address for OSPF?
FF02:5 and FF05:6
what is the solicited-node multicast address?
FF02::1:FF plus the last 6 hex characters of the unicast address.
In IPv6 what digits do the SNMA start with?
FF02::1:FF plus the last six digits of the uncompressed global unicast or link local address
In IPv6 what is the multicast address of the Router Solicitation or RS message?
FF02::2
what is the ipv6 multicast address for EIGRP?
FF02::A
in ipv6 what is the prefix for a multicast address?
FF:
True or false, leading zero compression allows you to remove the zeros before the number in an address but each block must have at least one number remaining?
True
What is the IPv6 multicast address for OSPFv3
ff002::5 and ff002::6
What is the IPv6 multicast address for RIPng?
ff002::9
What is the IPv6 multicast address for EIGRP?
ff002::a
in ipv6 what command causes and interface to use SLACC?
int x ipv6 address autoconfig
in ipv6 what addressing represents a private ip?
link local addresses
does OSPFv3 support ipv4 and ipv6?
no. ipv6 only
will OSPFv3 work without a router-id?
no. it needs an ipv4 router id
what are the four tasks that NDP accomplish in ipv6?
router discovery mac address discovery duplicate address detection (DAD) stateless address auto configuration (SLACC)
in ipv6 what command shows the mac address and ip address of neighbors?
show ipv6 neighbors
what messages are exchanged between server and client for ipv6 dhcp?
solicit advertise request reply
what are the two steps to configure OSPF in ipv6?
1. conf t ipv6 router ospf (process id) router-id (ipv4 address) exit 2. conf t (enable ospf on wanted interfaces) interface (x) ipv6 ospf (x = process id) (x=area)
How long is an ipv6 address?
128 bits
In IPv6 how many SNMA addresses are there?
2, one for the global unicast address and one for the link local address
What prefix does an IPv6 global unicast( the public ip ) start with?
2000::
in ipv6 what is the prefix for a global unicast address?
2000::/3
What prefix does IPv6 use for 6-4 tunneling?
2002::
How many hexadecimal characters are in each ipv6 field?
4 hex characters that are 16 bits each
what is the ip address and prefix for a default route in ipv6?
::/0
In IPv6 what kind of static route is used when the link local address is the next hop?
A fully specified static route.
When you run IPv6 and IPv4 on the same router what is that called?
Dual stack
in ipv6 what is the prefix for a link local address?
FE80:
What prefix does the IPv6 link-local( non routable APIPA ip ) start with?
FE80::
What command enables IPv6 routing?
IPv6 unicast-routing
In an IPv6 fully specified route where is the output interface information placed?
In between the destination network and the next hop address
What does ::1 mean in IPv6?
Loop back address
In IPv6 host discovery what two messages are used?
NA or neighbor advertisement and NS or neighbor solicitation
In IPv6 what is NDP?
Neighbor Discovery Protocol
what protocol replaces arp in ipv6?
Neighbor Discovery Protocol(NDP)
In IPv6 does dhcp send default router information?
No, the host get the default route from NDP
What does :: mean in IPv6?
Same as a default address(0.0.0.0)
In IPv6 what replaces the dora acronym?
Solicit Advertise Request Reply or SARR
In IPv6 what is the traditional form of dhcp called?
Statefull dhcp
What part of an IPv6 address is used for subnetting?
The bits between the global routing prefix and the interface identifier.
Does an interface identifier represent the host or the network?
The host
In IPv6 what address does a ND message go to?
The solicited node multicast address
Try or false, if we have an address with fields like this( :0000:0000 or 0000:0000:0000:0000 ) we can shorten it with double colons ( :: )?
True, but you can only do this once per address. If you see double colons twice in an address then it's an illegal address and can't be used.
True or false, an anycast address applies the same ip to multiple non host devices and is a destination ip?
True. It's called the one to nearest IP address.
What command enables IPv6 on a port and doesn't enable IPv6 routing?
Under the interface type "IPv6 address (X)" where X is the IP address.
In IPv6 what is stateless auto configuration or SLACC?
Where hosts create their own IPv6 addresses
In IPv6 what is a recursive static route?
Where only the next hop address is specified
In IPv6 what is a directly connected static route?
Where only the output interface is specified
In IPv6 what is a fully specified static route?
Where the next hop and output interface is specified
If a host without an IPv6 address sends an RS message how will the router respond?
With a router advertisement or RA to that host
If a host without an IPv6 address sends a RS message how will the router respond?
With an RA to the all nodes multicast address of FF01::1
What are the two kinds of compression used in IPv6 ?
Zero compression and leading zero compression.
In ipv6 what is SLACC(Stateless Address Autoconfiguration) used for?
automatically assigning addresses to hosts
what command enables ipv6 on an interface?
conf t int x ipv6 enable
what command enable ipv6 routing globaly?
conf t ipv6 unicast-routing
what is the command for static routing using link local addresses?
conf t ipv6 route x exit interface x x=ipv6 source/destination link local addresses
what is the command for static routing using the golbal unicast address?
conf t ipv6 route x x x=source/destination
