JUNOSのOSPF_その4
stubとNSSA確認
構成は↑
・R4-R6はeBGPで(1.1.1.4)の経路を受理
・R3-R5がエリア0、R7-R8-R6がエリア700
この状態で、StubとNSSAを確認
まず、標準エリアの場合のR6のOSPFと再配布関連
set policy-options policy-statement to_ospf term 1 from protocol bgp
set policy-options policy-statement to_ospf term 1 then external type 1
set policy-options policy-statement to_ospf term 1 then accept
set protocols ospf export to_ospf
set protocols ospf area 0.0.2.188 interface ge-0/0/1.0
set protocols ospf area 0.0.2.188 interface lo0.0 passive
この状態で、R3から1.1.1.4の経路確認
R3#show ip route ospf
Gateway of last resort is not setO E1 1.1.1.4 [110/4] via 172.16.5.254, 00:02:28, GigabitEthernet4
2.0.0.0/32 is subnetted, 4 subnets
エリア700をStubにし、R3で再度確認
R3#show ip route 1.1.1.4
% Subnet not in table
TotallyStubも同様
エリア700をNSSAにし、R3で再度確認
R5 config
admin@R5# show protocols ospf | display set
set protocols ospf area 0.0.0.0 interface lo0.0 passive
set protocols ospf area 0.0.0.0 interface ge-0/0/2.0
set protocols ospf area 0.0.2.188 nssa default-lsa default-metric 5
set protocols ospf area 0.0.2.188 nssa default-lsa metric-type 1
set protocols ospf area 0.0.2.188 nssa default-lsa type-7
set protocols ospf area 0.0.2.188 interface ge-0/0/1.0
R6 config
admin@R6# show protocols ospf | display set
set protocols ospf export to_ospf
set protocols ospf area 0.0.2.188 nssa
set protocols ospf area 0.0.2.188 interface ge-0/0/1.0
set protocols ospf area 0.0.2.188 interface lo0.0 passive
R3で確認
R3#show ip route
Gateway of last resort is not setO E1 1.1.1.4 [110/4] via 172.16.5.254, 00:02:21, GigabitEthernet4
OSPFは一旦終了