GRE over IPsec

2021 年 08 月 18 日

638 次浏览

3746字数

屏幕截图 2021-08-18 153658.png

一、GRE实验

system-view  
sysname R1 
interface GigabitEthernet 0/0/1 
ip address 192.168.10.1 24 
interface g 0/0/0 
ip address 100.100.100.1 24
ip route-static 192.168.80.0 24 100.100.100.2 

GRE
int tunnel 0/0/0
 ip add 10.1.1.1 24
 tunnel-protocol gre
 source 100.100.100.1
 destin 100.100.100.2
dis ip int br

system-view  
sysname R2 
interface GigabitEthernet0/0/1 
ip address 192.168.80.1 24 
interface g 0/0/0 
ip address 100.100.100.2 24
ip route-static 192.168.10.0 24 100.100.100.1
 
GRE
int tunnel 0/0/0
 ip add 10.1.1.2 24
 tunnel-protocol gre
 source 100.100.100.2
 destin 100.100.100.1
dis ip int br

R2抓包测试

ping 10.1.1.1

二、GRE over IPsec实验

system-view  
sysname R1 
interface GigabitEthernet 0/0/1 
ip address 192.168.10.1 24 
interface g 0/0/0 
ip address 100.100.100.1 24

ip route-static 192.168.80.0 24 100.100.100.2

IPsec-VPN

1. ACL
   acl 3000
   rule permit ip source 192.168.10.0 0.0.0.255 destination 192.168.80.0 0.0.0.255
   q
2. IKE
   ike proposal 10
   authentication-algorithm sha1
   encryption-algorithm des
   q
   ike peer r12 v1
   ike-proposal 10
   remote-address 100.100.100.2
   pre-shared-key simple abcde
   q
3. IPsec
   ipsec proposal tran1
   encapsulation-mode tunnel
   transform esp
   esp authentication-algorithm sha1
   esp encryption-algorithm des
   q
4. MAP
   ipsec policy map1 10 isakmp
   security acl 3000
   proposal tran1
   ike-peer r12
   q
   interface g 0/0/0
   ipsec policy map1
   q


display ike sa
display ipsec sa

GRE Over IPsec

1.
interface tunnel 0/0/1
tunnel-protocol gre
ip address 40.1.1.1 24
source 100.100.100.1
destination 100.100.100.2
q
2.
undo ip route-static 192.168.80.0 24 100.100.100.2
rip
version 2
network 40.0.0.0
network 192.168.10.0
q
3.
acl 3001
rule permit gre source 100.100.100.1 0 destination 100.100.100.2 0
quit
ipsec policy map1 20 isakmp
security acl 3001
proposal tran1
ike-peer r12
q

system-view  
sysname R2 
interface GigabitEthernet0/0/1 
ip address 192.168.80.1 24 
interface g 0/0/0 
ip address 100.100.100.2 24

ip route-static 192.168.10.0 24 100.100.100.1

IPsec-VPN

1. ACL
   acl 3000
   rule permit ip source 192.168.80.0 0.0.0.255 destination 192.168.10.0 0.0.0.255
   q
2. IKE
   ike proposal 10
   authentication-algorithm sha1
   encryption-algorithm des
   q
   ike peer r21 v1
   ike-proposal 10
   remote-address 100.100.100.1
   pre-shared-key simple abcde
   q
3. IPsec
   ipsec proposal tran1
   encapsulation-mode tunnel
   transform esp
   esp authentication-algorithm sha1
   esp encryption-algorithm des
   q
4. MAP
   ipsec policy map1 10 isakmp
   security acl 3000
   proposal tran1
   ike-peer r21
   q
   interface g 0/0/0
   ipsec policy map1
   q


display ike sa
display ipsec sa

GRE Over IPsec

1.
interface tunnel 0/0/1
tunnel-protocol gre
ip address 40.1.1.2 24
source 100.100.100.2
destination 100.100.100.1
q
2.
undo ip route-static 192.168.10.0 24 100.100.100.1
rip
version 2
network 40.0.0.0
network 192.168.80.0
q
3.
acl 3001
rule permit gre source 100.100.100.2 0 destination 100.100.100.1 0
quit
ipsec policy map1 20 isakmp
security acl 3001
proposal tran1
ike-peer r21
q

GRE over IPsec