·¢ÐÅÈË: hover (Óð), ÐÅÇø: TJU
±ê  Ìâ: Prefix Exercises (zt)
·¢ÐÅÕ¾: ÖйúCiscoÂÛ̳ (2003Äê06ÔÂ06ÈÕ08:33:14 ÐÇÆÚÎå), Õ¾ÄÚÐżþ

Exercises:

1. Construct a prefix list that permits only the 192.168.1.0/24 network. 
 
 ip prefix-list test1 seq 5 permit 192.168.1.0/24
 
2. Construct a prefix list that denies network 119.0.0.0, and permits all 
other prefixes (including all subnets of 119.0.0.0). 

 ip prefix-list test2 seq 5 deny 119.0.0.0/8
 ip prefix-list test2 seq 10 permit 0.0.0.0/0 le 32
 
3. Construct a prefix list that permits only the default route. 
 
 ip prefix-list test3 seq 5 permit 0.0.0.0/0
 
4. Construct a prefix list the permits everything except the default route. 

 ip prefix-list test4 seq 5 deny 0.0.0.0/0
 ip prefix-list test4 seq 10 permit 0.0.0.0/0 le 32

5. Construct a prefix list that permits network 172.16.0.0 and any of its 
subnets, and denies all other prefixes. 

 ip prefix-list test5 seq 5 permit 172.16.0.0/16 le 32

6. Construct a prefix list that permits only the following prefixes: 
10.2.8.32/27 
10.2.8.32/28 
10.2.8.32/29 
10.2.8.32/30 

 ip prefix-list test6 seq 5 permit 10.2.8.32/27 le 30

7. Construct a prefix list that: 

Permits 197.25.94.128/25 
Denies 197.25.94.192/26 
Permits 197.25.94.224/27 
Denies 197.25.94.240/28 
Permits 197.25.94.248/29 
Denies 197.25.94.252/30 
Permits all other prefixes, except for 198.82.0.0/16 

 ip prefix-list test7 seq 5 deny 197.25.94.192/26
 ip prefix-list test7 seq 10 deny 197.25.94.240/28
 ip prefix-list test7 seq 15 deny 197.25.94.252/30
 ip prefix-list test7 seq 20 deny 198.82.0.0/16
 ip prefix-list test7 seq 25 permit 0.0.0.0/0 le 32

8. Construct a prefix list that permits any prefix matching the first 20 
bits of 175.29.64.0 which has a mask of at least /26 but not exceeding /29, 
and denies all other prefixes. 

 ip prefix-list test8 seq 5 permit 175.29.64.0/20 ge 26 le 29

9. Construct a prefix list that denies any prefix matching the first 19 
bits of 15.26.96.0 with any mask up to and including /32, and permits any 
other prefix. 

 ip prefix-list test9 seq 5 deny 15.26.96.0/19 le 32
 ip prefix-list test9 seq 10 permit 0.0.0.0/0 le 32

10. Construct a prefix list that denies the RFC 1918 private networks and 
any of their subnets, and permits everything else. 

 ip prefix-list test10 seq 5 deny 10.0.0.0/8 le 32
 ip prefix-list test10 seq 10 deny 172.16.0.0/12 le 32
 ip prefix-list test10 seq 15 deny 192.168.0.0/16 le 32
 ip prefix-list test10 seq 20 permit 0.0.0.0/0 le 32

11. Construct a prefix list that permits any subnet of network 15.0.0.0 
(but not the network), and denies everything else. Your router lies within 
AS 65011. Place the prefix list in service in the inbound direction with 
BGP neighbor 1.2.3.4. 

 ip prefix-list test11 seq 5 permit 15.0.0.0/8 ge 9

To place it in service: 
 router bgp 65011
  neighbor 1.2.3.4 prefix-list test11 in

12. Construct a prefix list that denies 162.56.0.0/16 and all of its 
subnets (with the exception of 162.56.209.208/29, which is permitted), and 
permits all other prefixes. Your router lies within AS 65012. Place the 
prefix list in service in the outbound direction with its BGP neighbor 
having address 5.6.7.8. 

 ip prefix-list test12 seq 5 permit 162.56.209.208/29
 ip prefix-list test12 seq 10 deny 162.56.0.0/16 le 32
 ip prefix-list test12 seq 15 permit 0.0.0.0/0 le 32

To place it in service: 
 router bgp 65012
  neighbor 5.6.7.8 prefix-list test12 out

13. Construct a prefix list that permits the CIDR block containing the 
thirty-two class C networks beginning with 200.202.160.0/24, and denies 
everything else. Your router is within AS 65013. Place the prefix list in 
service in the inbound direction with BGP peer-group "Lucky_13". 

 ip prefix-list test13 seq 5 permit 200.202.160.0/19

To place it in service: 
 router bgp 65013
  neighbor Lucky_13 prefix-list test13 in

14. Construct a prefix list that denies any prefix for which the 
most-significant four bits are "0110", and permits everything else. 

 ip prefix-list test14 seq 5 deny 96.0.0.0/4 le 32
 ip prefix-list test14 seq 10 permit 0.0.0.0/0 le 32

15. Construct a prefix list that permits the host address of "CatSpace", 
and denies everything else. 

 ip prefix-list test15 seq 5 permit 64.82.100.67/32

16. Construct a prefix list that permits only classful networks, and denies 
everything else. 

 ip prefix-list test16 seq 5 permit 0.0.0.0/1 ge 8 le 8
 ip prefix-list test16 seq 10 permit 128.0.0.0/2 ge 16 le 16
 ip prefix-list test16 seq 15 permit 192.0.0.0/3 ge 24 le 24

17. Construct a prefix list that denies only supernets, and permits 
everything else. 

 ip prefix-list test17 seq 5 deny 0.0.0.0/1 le 7
 ip prefix-list test17 seq 10 deny 128.0.0.0/2 le 15
 ip prefix-list test17 seq 15 deny 192.0.0.0/3 le 23
 ip prefix-list test17 seq 20 permit 0.0.0.0/0 le 32

18. Construct a prefix list that permits only subnets, and denies 
everything else. 

 ip prefix-list test18 seq 5 permit 0.0.0.0/1 ge 9
 ip prefix-list test18 seq 10 permit 128.0.0.0/2 ge 17
 ip prefix-list test18 seq 15 permit 192.0.0.0/3 ge 25

19. Construct a prefix list that permits only CIDR blocks encompassing at 
least 32 class-C equivalents. 

 ip prefix-list test19 seq 5 deny 0.0.0.0/0
 ip prefix-list test19 seq 10 permit 0.0.0.0/0 le 19

20. Construct a prefix list that permits only the RFC 1918 private networks 
and their subnets, and configure RIP to use this prefix list for outbound 
routing advertisements. 

 ip prefix-list test20 seq 5 permit 10.0.0.0/8 le 32
 ip prefix-list test20 seq 10 permit 172.16.0.0/12 le 32
 ip prefix-list test20 seq 15 permit 192.168.0.0/16 le 32

To place it in effect for outbound RIP updates: 
 router rip
  distribute-list prefix test20 out 
--

Ïã²ÝÀ´×ÔÂí´ï¼Ó˹¼Ó,¿§·ÈÀ´×Ô°ÍÎ÷,²ÝÝ®À´×Ô¶íÀÕ¸Ô
ÇÉ¿ËÁ¦À´×Ô±ÈÀûʱ,¼á¹ûÀ´×ÔÏÄÍþÒÄ...
ÎÒµÄÀíÏë...                À´×ÔÄã

¡ù À´Ô´:¡¤ÖйúCiscoÂÛ̳ bbs.ccxx.net¡¤[FROM: el oc¨¦ano profundo]