ipv6 prefix-list
时间: 2024-03-08 19:43:29 浏览: 52
IPv6 Prefix List是一种IPv6路由过滤机制,它可以根据IPv6地址前缀来过滤路由。与IPv6 ACL不同,IPv6 Prefix List只有命名方式,没有数字形式,也只有扩展格式,没有标准格式。IPv6 Prefix List可以用于过滤路由,也可以用于路由策略。在配置IPv6 Prefix List时,可以使用deny或permit语句来拒绝或允许特定的IPv6地址前缀。同时,可以使用seq命令来指定每个语句的顺序。IPv6 Prefix List的应用需要与路由协议配合使用,例如在EIGRP协议中,可以使用distribute-list命令将IPv6 Prefix List应用到路由分发中。
相关问题
.RT1串行链路、RT2串行链路、FW1、AC1之间分别运行RIP和RIPng协议,FW1、RT1、RT2的RIP和RIPng发布loopback2地址路由,AC1 RIP发布loopback2地址路由,AC1 RIPng采用route-map匹配prefix-list重发布loopback2地址路由。RT1配置offset值为3的路由策略,实现RT1-S1/0_RT2-S1/1为主链路,RT1-S1/1_RT2-S1/0为备份链路,ipv4的ACL名称为AclRIP,ipv6的ACL名称为AclRIPng。RT1的S1/0与RT2的S1/1之间采用chap双向认证,用户名为对端设备名称,密码为Key-1122。
以下是配置示例:
在RT1上的配置:
```
interface Serial1/0
ip address 10.1.1.1 255.255.255.0
ipv6 address 2001:DB8:10:1::1/64
encapsulation ppp
ppp authentication chap
ppp chap hostname RT2
ppp chap password Key-1122
no shutdown
interface Serial1/1
ip address 10.1.2.1 255.255.255.0
ipv6 address 2001:DB8:10:2::1/64
encapsulation ppp
ppp authentication chap
ppp chap hostname RT2
ppp chap password Key-1122
no shutdown
interface Loopback2
ip address 192.168.2.1 255.255.255.0
ipv6 address 2001:DB8:2::1/64
access-list 101 permit ip host 192.168.2.1 any
access-list 102 permit ipv6 host 2001:DB8:2::1 any
router rip
version 2
network 192.168.2.0
default-metric 1
passive-interface default
no passive-interface Serial1/0
no passive-interface Serial1/1
router ripng
version 2
network 2001:DB8:2::/64
default-metric 1
distribute-list prefix-list RIPng out
passive-interface default
no passive-interface Serial1/0
no passive-interface Serial1/1
ipv6 prefix-list RIPng seq 10 permit 2001:DB8:2::/64
ipv6 prefix-list RIPng seq 20 deny ::/0 le 128
route-map RIPng permit 10
match ipv6 address prefix-list RIPng
set metric 3
```
在RT2上的配置:
```
interface Serial1/0
ip address 10.1.2.2 255.255.255.0
ipv6 address 2001:DB8:10:2::2/64
encapsulation ppp
ppp authentication chap
ppp chap hostname RT1
ppp chap password Key-1122
no shutdown
interface Serial1/1
ip address 10.1.1.2 255.255.255.0
ipv6 address 2001:DB8:10:1::2/64
encapsulation ppp
ppp authentication chap
ppp chap hostname RT1
ppp chap password Key-1122
no shutdown
interface Loopback2
ip address 192.168.2.2 255.255.255.0
ipv6 address 2001:DB8:2::2/64
router rip
version 2
network 192.168.2.0
default-metric 1
passive-interface default
no passive-interface Serial1/0
no passive-interface Serial1/1
router ripng
version 2
network 2001:DB8:2::/64
default-metric 1
distribute-list prefix-list RIPng out
passive-interface default
no passive-interface Serial1/0
no passive-interface Serial1/1
ipv6 prefix-list RIPng seq 10 permit 2001:DB8:2::/64
ipv6 prefix-list RIPng seq 20 deny ::/0 le 128
route-map RIPng permit 10
match ipv6 address prefix-list RIPng
set metric 3
```
在FW1上的配置:
```
interface GigabitEthernet0/0
ip address 10.1.3.1 255.255.255.0
ipv6 address 2001:DB8:10:3::1/64
interface Loopback2
ip address 192.168.2.3 255.255.255.0
ipv6 address 2001:DB8:2::3/64
router rip
version 2
network 192.168.2.0
default-metric 1
passive-interface default
no passive-interface GigabitEthernet0/0
router ripng
version 2
network 2001:DB8:2::/64
default-metric 1
distribute-list prefix-list RIPng out
passive-interface default
no passive-interface GigabitEthernet0/0
```
在AC1上的配置:
```
interface GigabitEthernet0/0
ip address 10.1.4.1 255.255.255.0
ipv6 address 2001:DB8:10:4::1/64
interface Loopback2
ip address 192.168.2.4 255.255.255.0
ipv6 address 2001:DB8:2::4/64
router rip
version 2
network 192.168.2.0
default-metric 1
passive-interface default
no passive-interface GigabitEthernet0/0
router ripng
version 2
network 2001:DB8:2::/64
default-metric 1
redistribute rip metric 3 route-map RIPng
passive-interface default
no passive-interface GigabitEthernet0/0
ipv6 prefix-list RIPng seq 10 permit 2001:DB8:2::/64
ipv6 prefix-list RIPng seq 20 deny ::/0 le 128
route-map RIPng permit 10
match ipv6 address prefix-list RIPng
set metric 3
```
注意:以上配置仅供参考,实际配置需要根据网络拓扑和需求进行调整。
思科ipv6怎么配置
在思科设备上配置IPv6需要进行以下步骤:
1. 启用IPv6功能
要启用IPv6功能,需要使用以下命令:
```
Router(config)#ipv6 unicast-routing
```
该命令会启用IPv6路由功能。
2. 配置IPv6地址
使用以下命令可以为接口配置IPv6地址:
```
Router(config-if)#ipv6 address ipv6-address/prefix-length
```
其中,“ipv6-address”为IPv6地址,“prefix-length”为前缀长度。
3. 配置IPv6默认路由
使用以下命令可以配置IPv6默认路由:
```
Router(config)#ipv6 route ::/0 next-hop-ipv6-address
```
其中,“next-hop-ipv6-address”为下一跳IPv6地址。
4. 配置IPv6 ACL
使用以下命令可以配置IPv6 ACL:
```
Router(config)#ipv6 access-list acl-name
```
其中,“acl-name”为ACL名称。
以上就是在思科设备上配置IPv6的基本步骤。
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