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--- juniper [2025/02/17 23:36] – created - external edit 127.0.0.1
+++ juniper [2025/07/17 14:52] (current) – adminent
@@ Line 1: / Line 1: @@
 ===== Juniper =====
-Default passwords:
+====Juniper Basic config====
-<code>cisco123
-juniper1</code>
+===Initial===
-=== JNCIA-104 ===
+  * Default username: root
+  * Default password is empty
+  - At the initial login prompt, type: **root**
+  - Next type: **cli**
+  - **edit**
+  - **delete chassis auto-image-upgrade**
+  - **set system root-authentication plain-text-password**
+  - **juniper1**
+  - **commit**
+===New Admin User===
+  - **set system login user tst-admin class super-user authentication plain-text-password**
+  - **juniper1**
+===New Operator User===
+  - **set system login user tst-operator class operator authentication plain-text-password**
+  - **juniper1**
+===Commit Variations===
+  * **commit**
+    * Commit immediately.
+  * **commit confirmed**
+    * Commit in 10 minutes. This is the default.
+  * **commit confirmed 3**
+    * Commit for 3 minutes, then load previous configuration unless a **commit** is issued within 3 minutes.
+  * **commit comment "Enable interface ge-0/0/0"**
+    * Commit with the comment
+  * **commit check**
+    * Verify syntax for pending changes. Does not commit.
+  * **commit and-quit**
+    * Commit, then quit back to operator mode
+===Change Screen Width===
+  * This will change the screen width for the current session only.
+  * **set cli screen-width 500**
+    * Change 500 to any desired value
+===Configure IPv4 Static Route Between Two Routers===
+  * Router 1/2 hostname: r1/r2
+  * Link between the two routers: 172.16.1.1/24 and 172.16.1.2/24
+  * Loopback IP on r2: 172.16.40.1/24
+  * r1:
+<code>set system host-name r1
+set interfaces et-0/0/8 unit 0 family inet address 172.16.1.1/24
+set routing-options static route 172.16.40.0/24 next-hop 172.16.1.2</code>
+  * r2:
+<code>set system host-name r2
+set interfaces et-0/0/8 unit 0 family inet address 172.16.1.2/24
+set interfaces lo0 unit 0 family inet address 172.16.40.1/24</code>
+  * Verify routing table on r1:
+<code>root@r1> show route protocol static 172.16.40.0/24
+inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
++ = Active Route, - = Last Active, * = Both
+.16.40.0/24     *[Static/5] 00:00:49
+                    >  to 172.16.1.2 via et-0/0/8.0</code>
+  * Ping from r1 to r2's 172.16.40.1 Loopback 0 interface
+<code>root@r1> ping 172.16.40.1 rapid
+PING 172.16.40.1 (172.16.40.1) 56(84) bytes of data.
+!!!!!
+--- 172.16.40.1 ping statistics ---
+packets transmitted, 5 received, 0% packet loss, time 43ms
+rtt min/avg/max/mdev = 8.486/9.865/14.538/2.346 ms, ipg/ewma 10.684/12.108 ms</code>
+===Configure IPv6 Static Route Between Two Routers===
+  * Router 1/2 hostname: r1/r2
+  * Link between the two routers: 2001:db8::1/64 and 2001:db8::2/64
+  * Loopback IP on r2: 2001:db8:0:40::1/64
+  * r1:
+<code>set system host-name r1
+set interfaces et-0/0/8 unit 0 family inet6 address 2001:db8::1/64
+set routing-options rib inet6.0 static route 2001:db8:0:40::/64 next-hop 2001:db8::2</code>
+  * r2:
+<code>set system host-name r2
+set interfaces et-0/0/8 unit 0 family inet6 address 2001:db8::2/64
+set interfaces lo0 unit 0 family inet6 address 2001:db8:0:40::1/64</code>
+  * Verify routing table on r1:
+<code>root@r1> show route protocol static 2001:db8:0:40::/64
+inet6.0: 14 destinations, 14 routes (14 active, 0 holddown, 0 hidden)
++ = Active Route, - = Last Active, * = Both
+:db8:0:40::/64 *[Static/5] 00:04:55
+                    >  to 2001:db8::2 via et-0/0/8.0</code>
+  * Ping from r1 to r2's 2001:db8:0:40::1 Loopback 0 interface
+<code>root@r1> ping 2001:db8:0:40::1 rapid
+PING 2001:db8:0:40::1(2001:db8:0:40::1) 56 data bytes
+!!!!!
+--- 2001:db8:0:40::1 ping statistics ---
+packets transmitted, 5 received, 0% packet loss, time 57ms
+rtt min/avg/max/mdev = 8.696/12.961/26.946/7.035 ms, ipg/ewma 14.234/19.682 ms</code>
+===OSPFv2 Notes===
+  * Route preference = 10
+  * Default OSPF Hello messages
+    * Destination multicast 224.0.0.5
+    * Area 0.0.0.0
+    * Hello interval = 10 seconds
+    * Dead interval = 40 seconds
+  * Passive interfaces advertise the prefix in OSPF, but do not send HELLO messages out of the interface.
+===OSPFv2 Verification Commands===
+  * **show ospf neighbor**
+  * **show route protocol ospf**
+  * **show route protocol ospf table inet.0**
+===OSPFv2 View Configuration===
+  * **show configuration protocols ospf**
+===Configure OSPFv2===
+  - The Customer has already enabled OSPF on r2.
+  - Configure interface link to r2.
+==Task 1==
+  * Delete LAN static routes on r1 for both IPv4 and IPv6.
+  - ++Answer|<code>delete routing-options static route 172.16.40.0/24
+delete routing-options rib inet6.0 static route 2001:db8:0:40::/64</code> ++
+==Task 2==
+  * Create and OSPF neighbor connection to r2.
+  - ++Answer|<code>set protocols ospf area 0 interface et-0/0/8.0</code> ++
+  * Verify neighborship.
+  - ++Answer|<code>show ospf neighbor</code> ++
+  - ++Answer|<code>show route protocol ospf</code> ++
+==Task 3==
+  * Advertise the three LAN prefixes to r2
+  - ++Answer|Make the three interfaces passive. ++
+  * Configuration
+  - ++Answer|<code>set protocols ospf area 0 interface et-0/0/8.0 passive
+set protocols ospf area 0 interface et-0/0/9.0 passive
+set protocols ospf area 0 interface et-0/0/10.0 passive</code> ++
+  * Verify OSPF route table
+  - ++Answer|<code>show route protocol ospf table inet.0</code> ++
+==Task 3==
+  * Advertise a default route to r2.
+    * Configure a routing policy to advertise between routing protocols.
+  - ++Answer|Under Construction ++
+===OSPFv2 vs. OSPFv3===
+^  OSPFv2  ^  OSPFv3  ^
+|Advertises only IPv4|Can only advertise IPv4 or IPv4 and IPv6|
+|Configured and verified using **ospf**|Configured and verified using **ospf3**|
+^  Both have  ^^
+|Link-state databases||
+|Generate LSAs||
+|Use metric||
+===OSPFv3 Notes===
+  * HELLO messages are sent to ff02::5/128
+===Configuration for OSPFv3: IPv6===
+  * **set protocols ospf area 0 interface et-0/0/0.0**
+  * **set protocols ospf area 0 interface et-0/0/8.0 passive**
+  * **set protocols ospf area 0 interface et-0/0/9.0 passive**
+  * **set protocols ospf area 0 interface et-0/0/10.0 passive**
+===OSPFv3 View Configuration===
+  * **show configuration protocols ospf3**
+===OSPFv3 Verification Commands===
+  * **show ospf3 neighbors**
+  * **show route protocol ospf3**
+===JNCIA-104===
 [[https://TopgradeApp.com/playQuiz/juniper-jncia-jn0-104|JNCIA-104 Practice Quiz]]\\

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