Tim's Technology Journey Wiki

• Default username: root
• Default password is empty

1. At the initial login prompt, type: root
2. Next type: cli
3. edit
4. delete chassis auto-image-upgrade
5. set system root-authentication plain-text-password
6. juniper1
7. commit

1. set system login user tst-admin class super-user authentication plain-text-password
2. juniper1

1. set system login user tst-operator class operator authentication plain-text-password
2. juniper1

• 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

• This will change the screen width for the current session only.
• set cli screen-width 500
  • Change 500 to any desired value

• 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:

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

• r2:

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

• Verify routing table on r1:

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

172.16.40.0/24     *[Static/5] 00:00:49
                    >  to 172.16.1.2 via et-0/0/8.0

• Ping from r1 to r2's 172.16.40.1 Loopback 0 interface

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 ---
5 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

• 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:

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

• r2:

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

• Verify routing table on r1:

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

2001:db8:0:40::/64 *[Static/5] 00:04:55
                    >  to 2001:db8::2 via et-0/0/8.0

• Ping from r1 to r2's 2001:db8:0:40::1 Loopback 0 interface

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 ---
5 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

• 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.

• show ospf neighbor
• show route protocol ospf
• show route protocol ospf table inet.0

• show configuration protocols ospf

1. The Customer has already enabled OSPF on r2.
2. Configure interface link to r2.

• Delete LAN static routes on r1 for both IPv4 and IPv6.

1. Answer

   delete routing-options static route 172.16.40.0/24
   delete routing-options rib inet6.0 static route 2001:db8:0:40::/64

• Create and OSPF neighbor connection to r2.

1. Answer

   set protocols ospf area 0 interface et-0/0/8.0

• Verify neighborship.

1. Answer

   show ospf neighbor

2. Answer

   show route protocol ospf

• Advertise the three LAN prefixes to r2

1. Answer Make the three interfaces passive.

• Configuration

1. Answer

   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

• Verify OSPF route table

1. Answer

   show route protocol ospf table inet.0

• Advertise a default route to r2.
  • Configure a routing policy to advertise between routing protocols.

1. Answer Under Construction

• HELLO messages are sent to ff02::5/128

• 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

• show configuration protocols ospf3

• show ospf3 neighbors
• show route protocol ospf3

JNCIA-104 Practice Quiz