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cisco:labs:ios-xe:lab17 [2025/10/04 11:30] – Namecisco:labs:ios-xe:lab17 [2025/10/04 21:19] (current) – [Answer Section] Name
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   - Complete [[:cisco:labs:ios-xe:lab16|Lab 16: eBGP with OSPF underlay]]\\    - Complete [[:cisco:labs:ios-xe:lab16|Lab 16: eBGP with OSPF underlay]]\\ 
  
-====Task Instructions:==== +====Task Instructions for r2 and r3:==== 
-  - Physical interfaces use a CIDR of /24. +  - Configure an ACL to define which traffic to encrypt using the physical interfaces. 
-  - Loopback interfaces use a CIDR of /32. +  - Configure IKEv2 proposal. 
-  - Use Loopback 0 as the router-id for OSPF and BGP. +  - Configure IKEv2 policy. 
-  - Configure r2 and r3 in OSPF Area 0. +  - Configure IKEv2 keyring. 
-  - Configure r1 and r2 in OSPF Area 1. +  - Configure IKEv2 profile. 
-  - Configure r3 and r4 in OSPF Area 2. +  - Configure ipsec transform-set in tunnel mode. 
-  - Verify OSPF database. +  - Configure crypto ipsec-isakmp map. 
-  - Verify all routers are able to ping each other. +  - Configure the crypto map on the physical interface. 
-  - Configure r1 in BGP AS 65000. +  - Verify crypto ipsec sa (may need to ping neighbor first). 
-  - Configure r4 in BGP AS 65001. +  - Verify crypto IKEv2 sa. 
-  - Configure r1 and r4 to form an eBGP neighborship. +  - Verify crypto between r2 and r3 using Wirehsark (optional).
-  - Verify BGP neighborship is Established.+
  
-{{:cisco:labs:ios-xe:lab_16_-_ebgp_with_ospf_underlay.png?500|}}+{{:cisco:labs:ios-xe:lab_17_-_ebgp_with_ospf_underlay_and_ikev2_between_r2_and_r3.png?500|}}
  
 ====Answer Section==== ====Answer Section====
 ===Task 1=== ===Task 1===
-r1 
-<code>hostname r1 
-! 
-interface GigabitEthernet1 
- no shutdown 
- ip address 12.1.1.1 255.255.255.0</code> 
 r2 r2
-<code>hostname r2 +<code>ip access-list extended castle-acl 
-! + 10 remark Permit statements equal traffic that shall be encrypted. 
-interface GigabitEthernet1 + 10 permit ip host 23.1.1.2 host 23.1.1.3</code>
- no shutdown +
- ip address 12.1.1.2 255.255.255.0 +
-! +
-interface GigabitEthernet2 +
- no shutdown +
- ip address 23.1.1.2 255.255.255.0</code>+
 r3 r3
-<code>hostname r3 +<code>ip access-list extended castle-acl 
-! + 10 remark Permit statements equal traffic that shall be encrypted. 
-interface GigabitEthernet1 + 10 permit ip host 23.1.1.3 host 23.1.1.2</code>
- no shutdown +
- ip address 34.1.1.3 255.255.255.0 +
-! +
-interface GigabitEthernet2 +
- no shutdown +
- ip address 23.1.1.3 255.255.255.0</code> +
-r4 +
-<code>hostname r4 +
-! +
-interface GigabitEthernet1 +
- no shutdown +
- ip address 34.1.1.4 255.255.255.0</code>+
 ---- ----
 ===Task 2=== ===Task 2===
-r1 
-<code>interface Loopback0 
- ip address 1.1.1.1 255.255.255.255</code> 
 r2 r2
-<code>interface Loopback0 +<code>crypto ikev2 proposal rook-proposal  
- ip address 2.2.2.2 255.255.255.255</code>+ encryption aes-cbc-256 
 + integrity sha512 
 + group 14</code>
 r3 r3
-<code>interface Loopback0 +<code>crypto ikev2 proposal rook-proposal  
- ip address 3.3.3.3 255.255.255.255</code> + encryption aes-cbc-256 
-r4 + integrity sha512 
-<code>interface Loopback0 + group 14</code> 
- ip address 4.4.4.4 255.255.255.255</code>+---- 
 +===Task 3=== 
 +r2 
 +<code>crypto ikev2 policy svpn-policy  
 + proposal rook-proposal</code> 
 +r3 
 +<code>crypto ikev2 policy svpn-policy  
 + proposal rook-proposal</code>
 ---- ----
 ===Task 4=== ===Task 4===
 r2 r2
-<code>router ospf 1 +<code>crypto ikev2 keyring lion-key 
- router-id 2.2.2.2 + peer peer-remote 
- network 2.2.2.2 0.0.0.0 area 0 +  address 23.1.1.3 
- network 23.1.1.2 0.0.0.0 area 0</code>+  pre-shared-key cisco</code>
 r3 r3
-<code>router ospf 1 +<code>crypto ikev2 keyring lion-key 
- router-id 3.3.3.3 + peer peer-remote 
- network 3.3.3.3 0.0.0.0 area 0 +  address 23.1.1.2 
- network 23.1.1.3 0.0.0.0 area 0</code>+  pre-shared-key cisco</code>
 ---- ----
 ===Task 5=== ===Task 5===
-r1 
-<code>router ospf 1 
- router-id 1.1.1.1 
- network 1.1.1.1 0.0.0.0 area 1 
- network 12.1.1.1 0.0.0.0 area 1</code> 
 r2 r2
-<code>router ospf 1 +<code>crypto ikev2 profile side-profile 
- network 12.1.1.2 0.0.0.0 area 1</code>+ match identity remote address 23.1.1.3 255.255.255.255  
 + authentication remote pre-share 
 + authentication local pre-share 
 + keyring local lion-key</code> 
 +r3 
 +<code>crypto ikev2 profile side-profile 
 + match identity remote address 23.1.1.2 255.255.255.255  
 + authentication remote pre-share 
 + authentication local pre-share 
 + keyring local lion-key</code>
 ---- ----
 ===Task 6=== ===Task 6===
 +r2
 +<code>crypto ipsec transform-set tset esp-aes esp-sha512-hmac 
 + mode tunnel</code>
 r3 r3
-<code>router ospf 1 +<code>crypto ipsec transform-set tset esp-aes esp-sha512-hmac  
- network 34.1.1.3 0.0.0.0 area 2</code> + mode tunnel</code>
-r4 +
-<code>router ospf 1 +
- router-id 4.4.4.4 +
- network 4.4.4.4 0.0.0.0 area 2 +
- network 34.1.1.4 0.0.0.0 area 2</code>+
 ---- ----
 ===Task 7=== ===Task 7===
-r1 
-<code>r1#show ip ospf database topology | b Summary 
-                Summary Net Link States (Area 1) 
- 
-Link ID         ADV Router      Age         Seq#       Checksum 
-2.2.2.2         2.2.2.2         476         0x80000003 0x00F633 
-3.3.3.3         2.2.2.2         476         0x80000003 0x00D252 
-4.4.4.4         2.2.2.2         476         0x80000003 0x00AE71 
-23.1.1.0        2.2.2.2         717         0x80000007 0x00080D 
-34.1.1.0        2.2.2.2         476         0x80000007 0x008286</code> 
 r2 r2
-<code>r2#show ip ospf database topology | b Summary +<code>crypto map svpn-map 10 ipsec-isakmp  
-                Summary Net Link States (Area 0)+ set peer 23.1.1.3 
 + set transform-set tset  
 + set pfs group14 
 + set ikev2-profile side-profile 
 + match address castle-acl</code> 
 +r3 
 +<code>crypto map svpn-map 10 ipsec-isakmp  
 + set peer 23.1.1.2 
 + set transform-set tset  
 + set pfs group14 
 + set ikev2-profile side-profile 
 + match address castle-acl/code> 
 +---- 
 +===Task 8=== 
 +r2 
 +<code>interface GigabitEthernet2 
 + crypto map svpn-map</code> 
 +r3 
 +<code>interface GigabitEthernet2 
 + crypto map svpn-map</code> 
 +---- 
 +===Task 9=== 
 +r2 
 +<code>r2#show crypto ipsec sa
  
-Link ID         ADV Router      Age         Seq#       Checksum +interface: GigabitEthernet2 
-1.1.1.1         2.2.2.2         755         0x80000003 0x002FFD +    Crypto map tag: svpn-map, local addr 23.1.1.2
-4.4.4.4         3.3.3.3         595         0x80000003 0x008696 +
-12.1.1.0        2.2.2.2         755         0x80000003 0x009F84 +
-34.1.1.0        3.3.3.3         595         0x80000005 0x005EA9+
  
-                Router Link States (Area 1)+   protected vrf: (none) 
 +   local  ident (addr/mask/prot/port): (23.1.1.2/255.255.255.255/0/0) 
 +   remote ident (addr/mask/prot/port): (23.1.1.3/255.255.255.255/0/0) 
 +   current_peer 23.1.1.3 port 500 
 +     PERMIT, flags={origin_is_acl,} 
 +    #pkts encaps: 8, #pkts encrypt: 8, #pkts digest: 8 
 +    #pkts decaps: 8, #pkts decrypt: 8, #pkts verify: 8 
 +    #pkts compressed: 0, #pkts decompressed: 0 
 +    #pkts not compressed: 0, #pkts compr. failed: 0 
 +    #pkts not decompressed: 0, #pkts decompress failed: 0 
 +    #send errors 0, #recv errors 0
  
-Link ID         ADV Router      Age         Seq#       Checksum Link count +     local crypto endpt.: 23.1.1.2, remote crypto endpt.: 23.1.1.3 
-1.1.1.1         1.1.1.1         561         0x8000000E 0x00C326 2          +     plaintext mtu 1422, path mtu 1500, ip mtu 1500, ip mtu idb GigabitEthernet2 
-2.2.2.2         2.2.2.2         755         0x8000000D 0x007184 1         +     current outbound spi: 0xF48D2703(4102891267) 
 +     PFS (Y/N): N, DH group: none
  
-                Net Link States (Area 1)+     inbound esp sas: 
 +      spi: 0xCDBEBD9A(3451829658) 
 +        transform: esp-aes esp-sha512-hmac , 
 +        in use settings ={Tunnel, } 
 +        conn id: 2006, flow_id: CSR:6, sibling_flags FFFFFFFF80000048, crypto map: svpn-map 
 +         sa timing: remaining key lifetime (k/sec): (4607999/3594) 
 +        IV size: 16 bytes 
 +        replay detection support: Y 
 +        Status: ACTIVE(ACTIVE)
  
-Link ID         ADV Router      Age         Seq#       Checksum +     inbound ah sas:
-12.1.1.2        2.2.2.2         755         0x80000003 0x000E06+
  
-                Summary Net Link States (Area 1)+     inbound pcp sas:
  
-Link ID         ADV Router      Age         Seq#       Checksum +     outbound esp sas: 
-2.2.2.2         2.2.2.2         514         0x80000003 0x00F633 +      spi: 0xF48D2703(4102891267) 
-3.3.3.3         2.2.2.2         514         0x80000003 0x00D252 +        transform: esp-aes esp-sha512-hmac , 
-4.4.4.4         2.2.2.2         514         0x80000003 0x00AE71 +        in use settings ={Tunnel, } 
-23.1.1.0        2.2.2.2         755         0x80000007 0x00080D +        conn id: 2005, flow_id: CSR:5, sibling_flags FFFFFFFF80000048, crypto map: svpn-map 
-34.1.1.0        2.2.2.2         514         0x80000007 0x008286</code>+         sa timing: remaining key lifetime (k/sec): (4607999/3594) 
 +        IV size: 16 bytes 
 +        replay detection support: Y 
 +        Status: ACTIVE(ACTIVE) 
 + 
 +     outbound ah sas: 
 + 
 +     outbound pcp sas:</code>
 r3 r3
-<code>r3#show ip ospf database topology | b Summary +<code>r3#show crypto ipsec sa
-                Summary Net Link States (Area 0)+
  
-Link ID         ADV Router      Age         Seq#       Checksum +interface: GigabitEthernet2 
-1.1.1.1         2.2.2.2         756         0x80000003 0x002FFD +    Crypto map tag: svpn-map, local addr 23.1.1.3
-4.4.4.4         3.3.3.3         594         0x80000003 0x008696 +
-12.1.1.0        2.2.2.2         756         0x80000003 0x009F84 +
-34.1.1.0        3.3.3.3         594         0x80000005 0x005EA9+
  
-                Router Link States (Area 2)+   protected vrf: (none) 
 +   local  ident (addr/mask/prot/port): (23.1.1.3/255.255.255.255/0/0) 
 +   remote ident (addr/mask/prot/port): (23.1.1.2/255.255.255.255/0/0) 
 +   current_peer 23.1.1.2 port 500 
 +     PERMIT, flags={origin_is_acl,} 
 +    #pkts encaps: 8, #pkts encrypt: 8, #pkts digest: 8 
 +    #pkts decaps: 8, #pkts decrypt: 8, #pkts verify: 8 
 +    #pkts compressed: 0, #pkts decompressed: 0 
 +    #pkts not compressed: 0, #pkts compr. failed: 0 
 +    #pkts not decompressed: 0, #pkts decompress failed: 0 
 +    #send errors 0, #recv errors 0
  
-Link ID         ADV Router      Age         Seq#       Checksum Link count +     local crypto endpt.: 23.1.1.3, remote crypto endpt.: 23.1.1.2 
-3.3.3.3         3.3.3.3         594         0x80000005 0x00E4E1 1          +     plaintext mtu 1422, path mtu 1500, ip mtu 1500, ip mtu idb GigabitEthernet2 
-4.4.4.4         4.4.4.4         338         0x80000006 0x006F2D 2         +     current outbound spi: 0xCDBEBD9A(3451829658) 
 +     PFS (Y/N): N, DH group: none
  
-                Net Link States (Area 2)+     inbound esp sas: 
 +      spi: 0xF48D2703(4102891267) 
 +        transform: esp-aes esp-sha512-hmac , 
 +        in use settings ={Tunnel, } 
 +        conn id: 2005, flow_id: CSR:5, sibling_flags FFFFFFFF80000048, crypto map: svpn-map 
 +         sa timing: remaining key lifetime (k/sec): (4607999/3508) 
 +        IV size: 16 bytes 
 +        replay detection support: Y 
 +        Status: ACTIVE(ACTIVE)
  
-Link ID         ADV Router      Age         Seq#       Checksum +     inbound ah sas:
-34.1.1.4        4.4.4.4         338         0x80000003 0x00479C+
  
-                Summary Net Link States (Area 2)+     inbound pcp sas:
  
-Link ID         ADV Router      Age         Seq#       Checksum +     outbound esp sas: 
-1.1.1.1         3.3.3.3         594         0x80000003 0x001B0D +      spi: 0xCDBEBD9A(3451829658) 
-2.2.2.2         3.3.3.3         594         0x80000003 0x00E242 +        transform: esp-aes esp-sha512-hmac , 
-3.3.3.3         3.3.3.3         594         0x80000003 0x00AA77 +        in use settings ={Tunnel, } 
-12.1.1.0        3.3.3.3         594         0x80000003 0x008B93 +        conn id: 2006, flow_id: CSR:6, sibling_flags FFFFFFFF80000048, crypto map: svpn-map 
-23.1.1.0        3.3.3.3         594         0x80000003 0x00F123</code> +         sa timing: remaining key lifetime (k/sec): (4607999/3508) 
-r4 +        IV size: 16 bytes 
-<code>r4#show ip ospf database topology | b Summary +        replay detection support: Y 
-                Summary Net Link States (Area 2)+        Status: ACTIVE(ACTIVE)
  
-Link ID         ADV Router      Age         Seq#       Checksum +     outbound ah sas: 
-1.1.1.1         3.3.3.3         595         0x80000003 0x001B0D + 
-2.2.2.2         3.3.3.3         595         0x80000003 0x00E242 +     outbound pcp sas:</code> 
-3.3.3.3         3.3.3.3         595         0x80000003 0x00AA77 +* Notice the inbound and outbound esp sas are populated.
-12.1.1.0        3.3.3.3         595         0x80000003 0x008B93 +
-23.1.1.0        3.3.3.3         595         0x80000003 0x00F123</code>+
 ---- ----
-===Task 8=== +===Task 10===
-r1 +
-<code>r1#ping 1.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r1#ping 2.2.2.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +
-r1#ping 3.3.3.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +
-r1#ping 4.4.4.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms +
-r1#ping 12.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r1#ping 12.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r1#ping 23.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r1#ping 23.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r1#ping 34.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +
-r1#ping 34.1.1.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/3 ms</code>+
 r2 r2
-<code>r2#ping 1.1.1.1 +<code>r2#show crypto ikev2 sa 
-Type escape sequence to abort. + IPv4 Crypto IKEv2  SA  
-Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: + 
-!!!!! +Tunnel-id Local                 Remote                fvrf/ivrf            Status  
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +1         23.1.1.2/500          23.1.1.3/500          none/none            READY   
-r2#ping 2.2.2.2 +      Encr: AES-CBC, keysize: 256, PRF: SHA512, Hash: SHA512, DH Grp:14, Auth sign: PSK, Auth verify: PSK 
-Type escape sequence to abort. +      Life/Active Time: 86400/411 sec</code>
-Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms +
-r2#ping 3.3.3.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r2#ping 4.4.4.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +
-r2#ping 12.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r2#ping 12.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r2#ping 23.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r2#ping 23.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r2#ping 34.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r2#ping 34.1.1.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms</code>+
 r3 r3
-<code>r3#ping 1.1.1.1 +<code>r3#show crypto ikev2 sa 
-Type escape sequence to abort. + IPv4 Crypto IKEv2  SA  
-Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: + 
-!!!!! +Tunnel-id Local                 Remote                fvrf/ivrf            Status  
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +1         23.1.1.3/500          23.1.1.2/500          none/none            READY   
-r3#ping 2.2.2.2 +      Encr: AES-CBC, keysize: 256, PRF: SHA512, Hash: SHA512, DH Grp:14, Auth sign: PSK, Auth verify: PSK 
-Type escape sequence to abort. +      Life/Active Time: 86400/449 sec</code>
-Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r3#ping 3.3.3.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r3#ping 4.4.4.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r3#ping 12.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r3#ping 12.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r3#ping 23.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r3#ping 23.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r3#ping 34.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r3#ping 34.1.1.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms</code> +
-r4 +
-<code>r4#ping 1.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms +
-r4#ping 2.2.2.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms +
-r4#ping 3.3.3.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r4#ping 4.4.4.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r4#ping 12.1.1.1 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.1, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms +
-r4#ping 12.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 12.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms +
-r4#ping 23.1.1.2 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/3 ms +
-r4#ping 23.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 23.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r4#ping 34.1.1.3 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.3, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms +
-r4#ping 34.1.1.4 +
-Type escape sequence to abort. +
-Sending 5, 100-byte ICMP Echos to 34.1.1.4, timeout is 2 seconds: +
-!!!!! +
-Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms</code> +
----- +
-===Task 9=== +
-r1 +
-<code>router bgp 65000 +
- bgp router-id 1.1.1.1</code> +
----- +
-===Task 10=== +
-r4 +
-<code>router bgp 65001 +
- bgp router-id 4.4.4.4</code>+
 ---- ----
 ===Task 11=== ===Task 11===
-r1 +{{:cisco:labs:ios-xe:lab_17_-_ss1.png?500|}} 
-<code>router bgp 65000 +  * In a later lab, all transit traffic will be encrypted through a tunnel interface. 
- neighbor 4.4.4.4 remote-as 65001 +
- neighbor 4.4.4.4 ebgp-multihop 3 +
- neighbor 4.4.4.4 update-source Loopback0</code> +
-r4 +
-<code>router bgp 65001 +
- neighbor 1.1.1.1 remote-as 65000 +
- neighbor 1.1.1.1 ebgp-multihop 3 +
- neighbor 1.1.1.1 update-source Loopback0</code> +
----- +
-===Task 12=== +
-r1 +
-<code>r1#show ip bgp nei | i BGP neighbor is|BGP state +
-BGP neighbor is 4.4.4.4,  remote AS 65001, external link +
-  BGP state = Established, up for 01:11:12</code> +
-r4 +
-<code>r4#show ip bgp nei | i BGP neighbor is|BGP state +
-BGP neighbor is 1.1.1.1,  remote AS 65000, external link +
-  BGP state = Established, up for 01:11:12</code>+
 ---- ----
 +
 =====Backlinks===== =====Backlinks=====
 [[:cisco|Cisco]]\\  [[:cisco|Cisco]]\\ 
cisco/labs/ios-xe/lab17.1759577422.txt.gz · Last modified: by Name

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