我有以下拓扑（使用 IPv6）接口：
我在其上配置了以下静态路由：
R1#sh ipv6 route static
IPv6 Routing Table - default - 9 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
lA - LISP away, a - Application
S 2004::/64 [1/0]
via GigabitEthernet0/2, directly connected
S 2005::/64 [1/0]
via 2003::2
我可以ping2005::2得很好！traceroute 也给出了预期的结果：
R1#traceroute 2005::1
Type escape sequence to abort.
Tracing the route to 2005::1
1 2003::2 12 msec 5 msec 4 msec
但是当我尝试2004::2使用命令配置ping 时ipv6 route 2004::/64 Gi0/2，我超时了：
R1#ping 2004::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2004::1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
我知道我们不应该将以太网接口配置为出口接口以防止 ARP 表溢出和/或防止性能问题，但我只是想获得概念证明/学习，我没有串行接口在我的 VIRL 图像上。
奇怪的是，我可以从R2 ( ) ping 2001::1( R1 )：2004::1
R2#ping 2001::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/7 ms
R2#traceroute 2001::1
Type escape sequence to abort.
Tracing the route to 2001::1
1 2002::1 9 msec 8 msec 8 msec
那么，我做错了什么？
配置转储
R1上的接口和路由：
R1#sh ipv6 int br
GigabitEthernet0/0 [up/up]
FE80::EC1:8FFF:FE5A:C100
2001::1
GigabitEthernet0/1 [up/up]
FE80::EC1:8FFF:FE5A:C101
2003::1
GigabitEthernet0/2 [up/up]
FE80::EC1:8FFF:FE5A:C102
2002::1
GigabitEthernet0/3 [administratively down/down]
unassigned
R1#sh ipv6 route
IPv6 Routing Table - default - 9 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
lA - LISP away, a - Application
C 2001::/64 [0/0]
via GigabitEthernet0/0, directly connected
L 2001::1/128 [0/0]
via GigabitEthernet0/0, receive
C 2002::/64 [0/0]
via GigabitEthernet0/2, directly connected
L 2002::1/128 [0/0]
via GigabitEthernet0/2, receive
C 2003::/64 [0/0]
via GigabitEthernet0/1, directly connected
L 2003::1/128 [0/0]
via GigabitEthernet0/1, receive
S 2004::/64 [1/0]
via GigabitEthernet0/2, directly connected
S 2005::/64 [1/0]
via 2003::2
L FF00::/8 [0/0]
via Null0, receive
R1#sh run
Building configuration...
Current configuration : 3268 bytes
!
! Last configuration change at 05:38:27 UTC Sun Dec 9 2018
!
version 15.6
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
ethernet lmi ce
!
!
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
!
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
redundancy
!
no cdp log mismatch duplex
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2001::1/64
ipv6 enable
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2003::1/64
!
interface GigabitEthernet0/2
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2002::1/64
!
interface GigabitEthernet0/3
no ip address
shutdown
duplex auto
speed auto
media-type rj45
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
ipv6 route 2004::/64 GigabitEthernet0/2
ipv6 route 2005::/64 2003::2
!
!
!
control-plane
!
banner exec ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner incoming ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner login ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
transport input none
!
no scheduler allocate
!
end
R2 上的接口和路由：
R2#sh ipv6 int br
GigabitEthernet0/0 [up/up]
FE80::EC1:8FFF:FEC5:C700
2004::1
GigabitEthernet0/1 [up/up]
FE80::EC1:8FFF:FEC5:C701
2002::2
GigabitEthernet0/2 [administratively down/down]
unassigned
GigabitEthernet0/3 [administratively down/down]
unassigned
R2#sh ipv6 route
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
lA - LISP away, a - Application
S 2001::/64 [1/0]
via 2002::1
C 2002::/64 [0/0]
via GigabitEthernet0/1, directly connected
L 2002::2/128 [0/0]
via GigabitEthernet0/1, receive
C 2004::/64 [0/0]
via GigabitEthernet0/0, directly connected
L 2004::1/128 [0/0]
via GigabitEthernet0/0, receive
L FF00::/8 [0/0]
via Null0, receive
R2#sh run
Building configuration...
Current configuration : 3200 bytes
!
! Last configuration change at 04:25:49 UTC Sun Dec 9 2018
!
version 15.6
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
ethernet lmi ce
!
!
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
!
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
redundancy
!
no cdp log mismatch duplex
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2004::1/64
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2002::2/64
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
media-type rj45
!
interface GigabitEthernet0/3
no ip address
shutdown
duplex auto
speed auto
media-type rj45
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
ipv6 route 2001::/64 2002::1
!
!
!
control-plane
!
banner exec ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner incoming ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner login ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
transport input none
!
no scheduler allocate
!
end
路由器 3
R3#sh run
Building configuration...
Current configuration : 3200 bytes
!
! Last configuration change at 04:25:55 UTC Sun Dec 9 2018
!
version 15.6
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
ethernet lmi ce
!
!
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
!
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
redundancy
!
no cdp log mismatch duplex
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2003::2/64
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
media-type rj45
ipv6 address 2005::1/64
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
media-type rj45
!
interface GigabitEthernet0/3
no ip address
shutdown
duplex auto
speed auto
media-type rj45
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
ipv6 route 2001::/64 2003::1
!
!
!
control-plane
!
banner exec ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner incoming ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
banner login ^C
**************************************************************************
* IOSv is strictly limited to use for evaluation, demonstration and IOS *
* education. IOSv is provided as-is and is not supported by Cisco's *
* Technical Advisory Center. Any use or disclosure, in whole or in part, *
* of the IOSv Software or Documentation to any third party for any *
* purposes is expressly prohibited except as otherwise authorized by *
* Cisco in writing. *
**************************************************************************^C
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
transport input none
!
no scheduler allocate
!
end