1. R1 라우팅 테이블 정보
① no auto-summary 적용 전
R1#sh protocols
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
Internet address is 133.168.1.62/26
Serial0/0 is up, line protocol is up
Serial0/0.192 is up, line protocol is up
Internet address is 192.168.1.193/30
FastEthernet0/1 is administratively down, line protocol is down
R1#sh ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 133.168.1.62 YES manual up up
Serial0/0 unassigned YES unset up up
Serial0/0.192 192.168.1.193 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
R1#sh ip rou
R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
D 200.168.1.0/24 [90/2684416] via 192.168.1.194, 03:46:50, Serial0/0.192
192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.1.0/24 is a summary, 03:51:02, Null0
C 192.168.1.192/30 is directly connected, Serial0/0.192
D 192.168.1.196/30
[90/2681856] via 192.168.1.194, 03:48:17, Serial0/0.192
133.168.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 133.168.1.0/26 is directly connected, FastEthernet0/0
D 133.168.0.0/16 is a summary, 03:51:03, Null0
R1#
② no auto-summary 적용 후
R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
D 200.168.1.0/24 [90/2684416] via 192.168.1.194, 00:00:11, Serial0/0.192
192.168.1.0/30 is subnetted, 2 subnets
C 192.168.1.192 is directly connected, Serial0/0.192
D 192.168.1.196 [90/2681856] via 192.168.1.194, 00:00:11, Serial0/0.192
133.168.0.0/26 is subnetted, 1 subnets
C 133.168.1.0 is directly connected, FastEthernet0/0
R1#
2. R2 라우팅 테이블 정보
① no auto-summary 적용 전
R2#sh protocols
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is administratively down, line protocol is down
Serial0/0 is up, line protocol is up
Serial0/0.192 is up, line protocol is up
Internet address is 192.168.1.194/30
Serial0/0.196 is up, line protocol is up
Internet address is 192.168.1.197/30
FastEthernet0/1 is administratively down, line protocol is down
R2#sh ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES NVRAM administratively down down
Serial0/0 unassigned YES NVRAM up up
Serial0/0.192 192.168.1.194 YES manual up up
Serial0/0.196 192.168.1.197 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
R2#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
D 200.168.1.0/24 [90/2172416] via 192.168.1.198, 03:47:37, Serial0/0.196
192.168.1.0/30 is subnetted, 2 subnets
C 192.168.1.192 is directly connected, Serial0/0.192
C 192.168.1.196 is directly connected, Serial0/0.196
D 133.168.0.0/16 [90/2172416] via 192.168.1.193, 03:49:08, Serial0/0.192
R2#
② no auto-summary 적용 후
R2# sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
200.168.1.0/26 is subnetted, 1 subnets
D 200.168.1.64 [90/2172416] via 192.168.1.198, 00:03:43, Serial0/0.196
192.168.1.0/30 is subnetted, 2 subnets
C 192.168.1.192 is directly connected, Serial0/0.192
C 192.168.1.196 is directly connected, Serial0/0.196
133.168.0.0/26 is subnetted, 1 subnets
D 133.168.1.0 [90/2172416] via 192.168.1.193, 00:04:24, Serial0/0.192
R2#
3. R3 라우팅 테이블 정보
① no auto-summary 적용 전
R3#sh protocols
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
Internet address is 200.168.1.126/26
Serial0/0 is up, line protocol is up
Serial0/0.196 is up, line protocol is up
Internet address is 192.168.1.198/30
FastEthernet0/1 is administratively down, line protocol is down
R3#sh ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 200.168.1.126 YES manual up up
Serial0/0 unassigned YES unset up up
Serial0/0.196 192.168.1.198 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
200.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 200.168.1.64/26 is directly connected, FastEthernet0/0
D 200.168.1.0/24 is a summary, 03:45:39, Null0
192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.1.0/24 is a summary, 03:45:39, Null0
D 192.168.1.192/30
[90/2681856] via 192.168.1.197, 03:45:44, Serial0/0.196
C 192.168.1.196/30 is directly connected, Serial0/0.196
D 133.168.0.0/16 [90/2684416] via 192.168.1.197, 03:45:44, Serial0/0.196
R3#
② no auto-summary 적용 후
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
200.168.1.0/26 is subnetted, 1 subnets
C 200.168.1.64 is directly connected, FastEthernet0/0
192.168.1.0/30 is subnetted, 2 subnets
D 192.168.1.192 [90/2681856] via 192.168.1.197, 00:04:04, Serial0/0.196
C 192.168.1.196 is directly connected, Serial0/0.196
133.168.0.0/26 is subnetted, 1 subnets
D 133.168.1.0 [90/2684416] via 192.168.1.197, 00:04:04, Serial0/0.196
R3#
