ipv6

基本配置

conf ter
int e 0/0
ipv6 enable
ipv6 address 2001::1/64
no shutdown

show ipv6 neighbor
show ipv6 interface ethernet 0/0

自动分配地址R1——>R2

R2(client)

int e 0/0
no ipv6 address
ipv6 address autoconfig

R1(server)
conf ter
ipv6 unicast-routing
int e 0/0
ipv6 enable
ipv6 address 2001::1/64
no shutdown

conf ter
ipv6 nd suppress-ra

访问控制列表

conf ter
ipv6 access-list DAVY
permit host 2001:1::1 any

int e 0/0
ipv6 traffic-filter DAVY out （对比ipv4 ip access-group DAVY out）

permit icmp any any nd-ns
permit icmp any any nd-na
deny ipv6 any any    三条隐含

静态路由

R1
conf ter
int lo0
ipv6 address 1::1 /64
int e 0/0
ipv6 address 2001::1 /64
no sh

ipv6 router 2:: /64 2001::2 (或ipv6 router 2:: /64 e 0/0)
show ipv6 route

R2
conf ter
int lo0
ipv6 address 2::2 /64
int e 0/0
ipv6 address 2001::2 /64
no sh

RIPng协议 udp端口 521 组播地址 FF02::9

conf ter
ipv6 unicast-routing
ipv6 router rip DAVY

int lo0
ipv6 rip DAVY enable
int e 0/0
ipv6 rip DAVY enable

debug ipv6 rip
show ipv6 route
ping
traceroute

ip split-horizon（ipv4接口下开启水平分割）
split-horizon（ipv6在进程下开启水平分割）

OSPFv3协议 协议号89 组播地址 FF02::5 FF02::6

conf ter
ipv6 unicast-routing
ipv6 router ospf 100
router-id 1.1.1.1

int lo0
ipv6 ospf 100 area 0
int e 0/0
ipv6 ospf 100 area 0

show ipv6 ospf neighbor
show ipv6 ospf route
ipv6 ospf network point-point（接口下还原掩码128——>64）

ISIS协议 二层头部 L1 L2

conf ter
#ipv6 unicast-routing
router isis
net 49.0001.1111.1111.1111.00
log-adjacency-changes all

int lo0
ipv6 router isis
int e 0/0
ipv6 router isis

show clns neighbor

int lo1
ipv6 address 100::1 /64
router isis
address-family ipv6  （ipv4中从发布直连redistribute connected）

BGP4+协议

R1
conf ter
router bgp 1
bgp router-id 1.1.1.1
no synchronization
no auto-summary
neighbor 2001::2 remote-as 2

address-family ipv6
neighbor 2001::2 activate

address-family ipv6
network 1:: /64 (宣告)

R2
conf ter
router bgp 2
bgp router-id 2.2.2.2
no synchronization
no auto-summary
neighbor 2001::1 remote-as 1

address-family ipv6
neighbor 2001::1 activate

on bgp default ipv4-unicast (在bgp进程中禁用ipv4)

show bgp ipv6 summary
show bgp ipv6

ipv4与ipv6混合使用

1.DUAL STACK  
在主机上安装配置

2.overlay tunnel

R1
conf ter
int s 0/0
ip add 12.1.1.1 255.255.255.0
no sh
lo0
ip add 1.1.1.1 255.255.255.0

int e 1/0
ipv address 1:1 /64
no sh

router ospf 100
router-id 1.1.1.1
network 12.1.1.0 0.0.0.255 area 0
network 1.1.1.0 0.0.0.255 area 0

interface tunnel 1
tunnel source 1.1.1.1
tunnel destination 3.3.3.3
tunnel mode ipv6ip
ipv6 enable

ipv6 unicast-routing
ipv6 rip DAVY
exit
int tunnel 1
ipv6 rip DAVY enable
int e 1/0
ipv6 rip DAVY enable

R2
conf ter
int s 0/0
ip add 12.1.1.2 255.255.255.0
clock rate 64000
no sh
int s 0/1
ip add 23.1.1.2 255.255.255.0
no sh

lo0
ip add 2.2.2.2 255.255.255.0

router ospf 100
router-id 2.2.2.2
network 12.1.1.0 0.0.0.255 area 0
network 23.1.1.0 0.0.0.255 area 0
network 2.2.2.0 0.0.0.255 area 0

R3
conf ter
int s 0/0
ip add 23.1.1.3 255.255.255.0
clock rate 64000
no sh
lo0
ip add 3.3.3.3 255.255.255.0

int e 1/0
ipv address 3:3 /64
no sh

router ospf 100
router-id 3.3.3.3
network 23.1.1.0 0.0.0.255 area 0
network 3.3.3.0 0.0.0.255 area 0

interface tunnel 3
tunnel source 3.3.3.3
tunnel destination 1.1.1.1
tunnel mode ipv6ip
ipv6 enable

ipv6 unicast-routing
ipv6 rip DAVY
exit
int tunnel 3
ipv6 rip DAVY enable
int e 1/0
ipv6 rip DAVY enable

3.6to4 tunnel (核心是自动tunnel 路由较少)

R1
conf ter
int s 0/0
ip add 12.1.1.1 255.255.255.0
no sh
lo0
ip add 1.1.1.1 255.255.255.0

int e 1/0
ipv address 2002:101:101::1 /64
no sh

router ospf 100
router-id 1.1.1.1
network 12.1.1.0 0.0.0.255 area 0
network 1.1.1.0 0.0.0.255 area 0

int tunnel 1
tunnel source 1.1.1.1
tunnel mode ip6ip 6to4
ipv6 unnumbered ethernet 1/0

ipv6 route 2002:: /16 tunnel 1

R2
conf ter
int s 0/0
ip add 12.1.1.2 255.255.255.0
clock rate 64000
no sh
int s 0/1
ip add 23.1.1.2 255.255.255.0
no sh

lo0
ip add 2.2.2.2 255.255.255.0

router ospf 100
router-id 2.2.2.2
network 12.1.1.0 0.0.0.255 area 0
network 23.1.1.0 0.0.0.255 area 0
network 2.2.2.0 0.0.0.255 area 0

R3
conf ter
int s 0/0
ip add 23.1.1.3 255.255.255.0
clock rate 64000
no sh
lo0
ip add 3.3.3.3 255.255.255.0

int e 1/0
ipv address 2002:303:303::3 /64
no sh

router ospf 100
router-id 3.3.3.3
network 23.1.1.0 0.0.0.255 area 0
network 3.3.3.0 0.0.0.255 area 0

int tunnel 3
tunnel source 3.3.3.3
tunnel mode ip6ip 6to4
ipv6 unnumbered ethernet 1/0

ipv6 route 2002:: /16 tunnel 3