Chapter 9


1

No additional OSPFv3 command is needed to include a second IPv6 prefix that has been configured on an interface in the OSPFv3 process. If OSPFv3 is configured on an interface, and a second IPv6 address is added to the interface, the second address is automatically included in the OSPFv3 process.

2

Yes, two routers can become adjacent if they are configured with different prefixes. No prefix information is included in Hellos, the source address of the Hello packet is the Link-local address. Other IPv6 addresses configured on the interfaces have no bearing on whether two routers become adjacent or not.

3

The basic router configurations are

RtrA:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:4::3/64  ipv6 ospf 1 area 1 int e 0/1  ipv6 address 2001:db8:0:5::1/64  ipv6 ospf 1 area 1

RtrB:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:4::2/64  ipv6 ospf 1 area 1 int e 0/1  ipv6 address 2001:db8:0:6::1/64  ipv6 ospf 1 area 1

RtrC:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:4::1/64  ipv6 ospf 1 area 1 int serial 0/0  ipv6 address 2001:db8:0:8::1/64  ipv6 ospf 1 area 0

RtrD:

ipv6 unicast-routing int s 0/0  ipv6 address 2001:db8:0:8::2/64  ipv6 ospf 1 area 0

4

To change area 1 to a totally stubby area and summarize into area 0, new router configurations are

RtrA:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:5::3/64  ipv6 ospf 1 area 1 ipv6 router ospf 1  area 1 stub

RtrB:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:4::2/64  ipv6 ospf 1 area 1 ipv6 router ospf 1  area 1 stub

RtrC:

ipv6 unicast-routing int e 0/0  ipv6 address 2001:db8:0:4::1/64  ipv6 ospf 1 area 1 int serial 0/0  ipv6 address 2001:db8:0:8::1/64  ipv6 ospf 1 area 0 ipv6 router ospf 1  area 1 stub no-summary  area 1 range 2001:db8:0:10::/61




CCIE Professional Development Routing TCP/IP (Vol. 12005)
Routing TCP/IP, Volume 1 (2nd Edition)
ISBN: 1587052024
EAN: 2147483647
Year: 2005
Pages: 233

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