JUNOSのOSPF_その２
コストの確認
構成は↑で全部エリア０
R1側でR7上のlo(2.1.1.7)の経路確認
R1>show ip route 2.1.1.7
Routing entry for 2.1.1.7/32
Known via "ospf 1", distance 110, metric 3, type intra area
Last update from 172.16.2.254 on GigabitEthernet3, 20:29:25 ago
Routing Descriptor Blocks:
* 172.16.2.254, from 2.1.1.7, 20:29:25 ago, via GigabitEthernet3
Route metric is 3, traffic share count is 1
R1>
Ciscoは着信時にコスト加算だったはずなので、Gi3をコスト２にしてみる。
R1(config-if)#do sho run int gi3
!
interface GigabitEthernet3
ip address 172.16.2.1 255.255.255.0
ip ospf 1 area 0
ip ospf cost 2
end
再度確認
R1(config-if)#do sho ip route 2.1.1.7
Routing entry for 2.1.1.7/32
Known via "ospf 1", distance 110, metric 4, type intra area
Last update from 172.16.2.254 on GigabitEthernet3, 00:00:29 ago
Routing Descriptor Blocks:
* 172.16.2.254, from 2.1.1.7, 00:00:29 ago, via GigabitEthernet3
Route metric is 4, traffic share count is 1
R1(config-if)#
問題なし。 今度はJUNOSで確認。 Ciscoと同じはずだが念のため
R7でR1のlo（1.1.1.1）を確認
admin@R7# run show route 1.1.1.1
inet.0: 20 destinations, 21 routes (20 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both1.1.1.1/32 *[OSPF/10] 00:02:02, metric 4
> to 172.16.8.1 via ge-0/0/1.0[edit]
admin@R7#
R7のGi1のコストを２に変更
admin@R7# show protocols ospf | display set
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0 metric 2
set protocols ospf area 0.0.0.0 interface lo0.0 interface-type p2p
もう一度確認
admin@R7# run show route 1.1.1.1
inet.0: 20 destinations, 21 routes (20 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both1.1.1.1/32 *[OSPF/10] 00:00:45, metric 5
> to 172.16.8.1 via ge-0/0/1.0
これはCiscoと同様
ついでにMD5認証も確認 R4-R6でMD5認証を実施
まずCisco
R4#show run int gi4
!
interface GigabitEthernet4
description To_R6_Gi4
ip address 172.16.6.254 255.255.255.0
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 Juniper@cisco
ip ospf 1 area 0
negotiation auto
end
JUNOS
admin@R6# show protocols ospf | display set
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/2.0 authentication md5 1 key "$9$KFnWXNs2aikPdbkP5Q9CKM8LXNbwgoJDbs4ZjqQz"
set protocols ospf area 0.0.0.0 interface lo0.0
結果は・・・
admin@R6# run show ospf neighbor
Address Interface State ID Pri Dead
172.16.7.1 ge-0/0/0.0 Full 2.1.1.5 128 35
172.16.9.1 ge-0/0/1.0 Full 2.1.1.8 128 36
172.16.6.254 ge-0/0/2.0 Full 1.1.1.4 1 31
問題なし
