====== Cisco: GRE tunel ======
10.0.0.0
10.0.0.0
R1
R1
R2
R2
172.16.1.0
172.16.1.0
R3
R3
192.168.3.1
192.168.3.1
GRE
GRE
192.168.3.2
192.168.3.2
192.168.2.0
192.168.2.0
192.168.1.0
192.168.1.0 ====== Notatki: ====== test:\\ PC2#ping 10.0.0.254 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.254, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 44/56/76 ms PC2#traceroute 10.0.0.254 Type escape sequence to abort. Tracing the route to 10.0.0.254 1 172.16.1.1 32 msec 32 msec 32 msec 2 192.168.3.1 28 msec 20 msec 44 msec 3 10.0.0.254 44 msec 60 msec 64 msec PC2# {{.:pasted:20250620-125738.png}} R1:\\ interface Tunnel0 ip address 192.168.3.1 255.255.255.0 tunnel source 192.168.1.1 tunnel destination 192.168.2.2 R3:\\ interface Tunnel0 ip address 192.168.3.2 255.255.255.0 tunnel source 192.168.2.2 tunnel destination 192.168.1.1 ====== GNS3 ====== {{.:pasted:20250620-123129.png}} Konfiguracja R1: Building configuration... Current configuration : 1482 bytes ! version 12.4 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 memory-size iomem 5 no ip icmp rate-limit unreachable ip cef ! ! ! ! no ip domain lookup ! multilink bundle-name authenticated ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! archive log config hidekeys ! ! ! ! ip tcp synwait-time 5 ! ! ! ! interface Tunnel0 ip address 192.168.3.1 255.255.255.0 tunnel source 192.168.1.1 tunnel destination 192.168.2.2 ! interface FastEthernet0/0 ip address 10.0.0.1 255.255.255.0 duplex auto speed auto ! interface Serial0/0 ip address 192.168.1.1 255.255.255.0 clock rate 2000000 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address shutdown clock rate 2000000 ! interface Serial0/2 no ip address shutdown clock rate 2000000 ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet2/0 no ip address shutdown duplex auto speed auto ! ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 192.168.1.2 ip route 172.16.1.0 255.255.255.0 192.168.3.2 ! ! no ip http server no ip http secure-server ! no cdp log mismatch duplex ! ! ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! 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 ! ! end Konfiguracja R2: Destination filename [startup-config]? Building configuration... [OK] R2# *Mar 1 00:09:02.183: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to up R2#show run Building configuration... Current configuration : 1285 bytes ! version 12.4 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 memory-size iomem 5 no ip icmp rate-limit unreachable ip cef ! ! ! ! no ip domain lookup ! multilink bundle-name authenticated ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! archive log config hidekeys ! ! ! ! ip tcp synwait-time 5 ! ! ! ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface Serial0/0 ip address 192.168.1.2 255.255.255.0 clock rate 2000000 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 ip address 192.168.2.1 255.255.255.0 clock rate 2000000 ! interface Serial0/2 no ip address shutdown clock rate 2000000 ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet2/0 no ip address shutdown duplex auto speed auto ! ip forward-protocol nd ! ! no ip http server no ip http secure-server ! no cdp log mismatch duplex ! ! ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! 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 ! ! end Konfiguracja R3: Building configuration... Current configuration : 1482 bytes ! version 12.4 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 memory-size iomem 5 no ip icmp rate-limit unreachable ip cef ! ! ! ! no ip domain lookup ! multilink bundle-name authenticated ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! archive log config hidekeys ! ! ! ! ip tcp synwait-time 5 ! ! ! ! interface Tunnel0 ip address 192.168.3.2 255.255.255.0 tunnel source 192.168.2.2 tunnel destination 192.168.1.1 ! interface FastEthernet0/0 ip address 172.16.1.1 255.255.255.0 duplex auto speed auto ! interface Serial0/0 no ip address shutdown clock rate 2000000 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 ip address 192.168.2.2 255.255.255.0 clock rate 2000000 ! interface Serial0/2 no ip address shutdown clock rate 2000000 ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet2/0 no ip address shutdown duplex auto speed auto ! ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 192.168.2.1 ip route 10.0.0.0 255.255.255.0 192.168.3.1 ! ! no ip http server no ip http secure-server ! no cdp log mismatch duplex ! ! ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! 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 ! ! end