1. RIP의 경우 다른 장비에서 업데이트를 해도 즉각 반영되지 않는다.
이유: RIP은 기본으로 30초마다 갱신되기 때문이다.
-> 갱신이 끝나도 이전 값이 잔류하고 있을 경우 재기동한다.
show ip route
C: connected
L: local
possibly down, -> show ip route 에서 정보가 사라지고 있는 중.
172.16.0.0/24 is subnetted, 4 subnets -> 172.16.0.0/16 으로 나와야 함 (시뮬레이터 오류)
R 172.16.1.0/24 [120/1] via 10.1.1.14, 00:00:22, GigabitEthernet0/0/0
R 172.16.2.0/24 [120/1] via 10.1.1.14, 00:00:22, GigabitEthernet0/0/0
R 172.16.3.0/24 [120/1] via 10.1.1.14, 00:00:22, GigabitEthernet0/0/0
R 172.16.4.0/24 [120/1] via 10.1.1.14, 00:00:22, GigabitEthernet0/0/0
rip 재분배 (R3에서)
-> Router(config-router)#redistribute rip subnets
R2에서 변동사항: E2가 생김 (External, metric-type 2) => metric-type 1은 변동, 2는 고정(기본값)
Router>show ip route
Codes: L - local, 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, E - EGP
i - IS-IS, 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
1.0.0.0/8 is variably subnetted, 7 subnets, 3 masks
O 1.1.1.1/32 [110/65] via 1.1.12.1, 00:01:57, Serial0/1/0
C 1.1.12.0/24 is directly connected, Serial0/1/0
L 1.1.12.2/32 is directly connected, Serial0/1/0
C 1.1.23.0/30 is directly connected, Serial0/1/1
L 1.1.23.1/32 is directly connected, Serial0/1/1
O IA 1.1.34.0/30 [110/128] via 1.1.23.2, 00:01:42, Serial0/1/1
O IA 1.1.45.0/24 [110/192] via 1.1.23.2, 00:01:42, Serial0/1/1
2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 2.2.2.0/24 is directly connected, Loopback0
L 2.2.2.2/32 is directly connected, Loopback0
3.0.0.0/32 is subnetted, 1 subnets
O IA 3.3.3.3/32 [110/65] via 1.1.23.2, 00:01:42, Serial0/1/1
4.0.0.0/32 is subnetted, 1 subnets
O IA 4.4.4.4/32 [110/129] via 1.1.23.2, 00:01:42, Serial0/1/1
5.0.0.0/32 is subnetted, 1 subnets
O IA 5.5.5.5/32 [110/193] via 1.1.23.2, 00:01:42, Serial0/1/1
10.0.0.0/29 is subnetted, 1 subnets
O E2 10.1.1.8/29 [110/20] via 1.1.23.2, 00:00:06, Serial0/1/1
172.16.0.0/24 is subnetted, 4 subnets
O E2 172.16.1.0/24 [110/20] via 1.1.23.2, 00:00:06, Serial0/1/1
O E2 172.16.2.0/24 [110/20] via 1.1.23.2, 00:00:06, Serial0/1/1
O E2 172.16.3.0/24 [110/20] via 1.1.23.2, 00:00:06, Serial0/1/1
O E2 172.16.4.0/24 [110/20] via 1.1.23.2, 00:00:06, Serial0/1/1
[외부 네트워크 연동 R3 - R10] -> R2에서 적용되었는지 확인.
metric은 link speed: 가까울수록 값이 작음. (R2 IA 기준)
-> R2의 E2는 외부에 값 전달 시 고정값에 따라서 똑같은 값(METRIC)을 전달한다. (기본은 20)
-> metric값을 50으로 변경하여 준다면?
R3(config-router)#redistribute rip metric 50 subnets
이거 먼저 해주기.
R2>show ip route
..
O E2 10.1.1.8/29 [110/50] via 1.1.23.2, 00:00:27, Serial0/1/1
172.16.0.0/24 is subnetted, 4 subnets
O E2 172.16.1.0/24 [110/50] via 1.1.23.2, 00:00:27, Serial0/1/1
O E2 172.16.2.0/24 [110/50] via 1.1.23.2, 00:00:27, Serial0/1/1
O E2 172.16.3.0/24 [110/50] via 1.1.23.2, 00:00:27, Serial0/1/1
O E2 172.16.4.0/24 [110/50] via 1.1.23.2, 00:00:27, Serial0/1/1
..
R3(config-router)#redistribute ospf 1 metric 1
그 다음 두 번째 명령어.
R5(config-router)#router ospf 1
Router(config-router)#redistribute eigrp 100 metric ?
<0-16777214> OSPF default metric
R5(config-router)#redistribute eigrp 100 metric 1 subnets
router eigrp 100
redistribute ospf 1 metric 1000000[metric 값 = BW] 10[delay] 255[신뢰도] 1[load] 1500[MTU]
이유는?
Router(config)#do show inter gig0/0/0
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255
K1: 10Gbps / BW : 10,000,000 / 1000000
K2: Load : 1
K3: DLY (Delay) : 10
K4: 신뢰도 : 255
K5: MTU: 1500
Major -> ~의 몇 번째 Octet이 고정
0 ~ 127.x.x.x/8 -> 255.0.0.0 => 1~126
128 ~ 191.x.x.x/16 -> 255.255.0.0
192~223.x.x.x/24 -> 255.255.255.0
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