Skip to main content


Showing posts from October, 2011

From IOS to Junos – JNCIA Result - PASS

I done the exam, and I am please to say I passed. So the lab-ing and the two PDFs


And a bit of surfing the web were enough. That is not to say everything in the exam was familiar, I did have to think seriously about some questions which puzzled me.
So the next step will be to go for specialist, but because of workload, it's going to take a little longer that 15 Days.

From IOS to Junos – Final Day – Part 5 (Services)

It's a Wrap
This is the last on this series, it has been hard work fitting in the time (very late evenings) and frustration trying to dump my notes into wordpress. I need to do more reading before the end of the week as I have booked the JNCIA-Junos exam. The start of the Journey has been interesting, and I hope to reach my first mile stone JNCIA-Junos, then I decide if I can go much further with the resource I have at my disposal.

Services and Users Part

I had some issues getting NTP synced on the last video, I eventually worked it out so here is the final installment.

Final word
That me finished this series, I hope people find to useful, I know I have found it of great value albeit a tiring one.

From IOS to Junos – Final Day – Part 4 (BGP)

This serious show clearly how tiredness cause simple mistakes :)

Some Troubleshooting

From IOS to Junos - Final Day - Part 3 (OSPF)

and we continue

From IOS to Junos - Final Day - Part 2 (RIP)

This is me trying to get RIP working from memory, remember I only began to work on JUNOS one week ago, so it is painful in places

RIP Part 1

RIP Part 2

From IOS to Junos - Final Day - Part 1

In this final day I have reset the Lab then proceeded to reconfigure all the devices and capture the process on video. You can watch all my mistakes and also see how I jump around to troubleshoot some basic routing issues between the redistribution between routing protocols.

Factory Reset

Basic Configuration

Interface Check

From IOS to Junos – Day 5

Notes from the day
*** BGP into OSPF

I forgot you need to export from a protocol into the next protocol.

root@Junos4# edit protocols ospf

[edit protocols ospf]

root@Junos4# delete import BGPtoOSPF

[edit protocols ospf]

root@Junos4# set export BGPtoOSPF

[edit protocols ospf]

root@Junos4# commit

commit complete

**** Before

root@Junos2> show route

inet.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)

+ = Active Route, - = Last Active, * = Both    *[RIP/100] 00:25:02, metric 2, tag 0

> to via em0.0    *[Direct/0] 00:25:24

> via lo0.10    *[OSPF/10] 00:23:59, metric 1

> to via em1.0    *[OSPF/10] 00:23:59, metric 1

> to via em1.0    *[OSPF/10] 00:23:59, metric 1

> to via em1.0    *[OSPF/10] 00:23:59, metric 1

> to via em1.0    *[Direct/0] 00:25:24

> via em0.0    *[Local/0] 00:25:24

Local via em0.0


From IOS to Junos – Day 4

Not much done tonight, have been really busy.

BGP today :)

Notes from the day
Tried to acccess Junos4 but ssh failed.
Because of rushing yesterday I have not enabled ssh

set system services ssh

Entering configuration mode
Users currently editing the configuration:
root terminal v0 (pid 1364) on since 2011-10-05 19:18:27 UTC, idle 00:00:54

root@Junos4# set interfaces em1 unit 0 family i
'i' is ambiguous.
Possible completions:
> inet IPv4 parameters
> inet6 IPv6 protocol parameters
> iso OSI ISO protocol parameters
root@Junos4# set interfaces em1 unit 0 family inet address

root@Junos4# commit
commit complete


root@Junos4# set routing-options autonomous-system 9999

root@Junos4# edit protocols bgp

[edit protocols bgp]
[edit protocols bgp]
root@Junos4# set group 4to5 peer-as 9998
[edit protocols b…

From IOS to Junos - Day 3

Once I have configure everything I am going to wipe the lab and start again seeing if I can clean up some of the mess, but I won't post line by line here, I will just post the final configs.
Notes from the day

OSPF Today.

set host name and domain name to all ospf routers
set system host-name
set system root-authentication plain-text-password

apply interface configuration to all ospf routers

now do ospf???

I haven't looked at a book yet so doing this by feel
configure protocols
set ospf area 0 interface em1

edit protocol interface em0

Junos 3 immediately formed a neighbot with Junos 2

do the same for 4,6 and 7

ok a quick peak at a book and look like I can just add the intefaces into the area

edit protocols
set ospf area 0 interface lo0.10 passive

can see all loopback at junos 3

*** redist into rip

root@Junos2> configure
Entering configuration mode

root@Junos2# edit policy-options


Windows 2008 RADIUS for CISCO Device Authentication

Network Device Authentication
 (I wrote this ages ago but though I would transfer to my blog site)

It is not uncommon to discover infrastructures with authentication policies in place for Windows Admin Access using Active Directory accounts, only to find the network devices are being accessed using a common user name and password. It would be ideal if the Active Directory accounts that are used to administer the Windows environment could be used to administer the network devices too. (This article is specific to Cisco Network Devices)

One solution is to purchase a Cisco Secure Access Control Server, this can use accounts in the Active Directory. The product is quite extensive and has many more feature than just logon authentication.

Device administration: Authenticates administrators, authorizes commands, and provides an audit trail
Remote Access: Works with VPN and other remote network access devices to enforce access policies
Wireless: Authenticates and authorizes wireless users and hos…

From IOS to Junos – Day 2

Notes from the day
I am just going to dump my text notes for the day, you have no idea how long it would take to format this stuff, and hell I do it to share, not to make profit.

** when I had shutdown after the previous days works,
I had a thought that the loopback 0 (only loopback adaptor in Junos)
would probably be done using unit numbers, as soon a I woke up and checked my
twitter I had a tweet from @networkjanitor
"In regards to Junos Loopbacks you can have multiple unit interfaces
and they can go diff vrfs"

so first task today is remove existing loopback 0 unit 0 address
and create new loopback 0 unit 10 address.

root@Junos1# edit interfaces lo0

[edit interfaces lo0]

root@Junos1# edit unit 0

[edit interfaces lo0 unit 0]

root@Junos1# show
family inet {

[edit interfaces lo0 unit 0]
root@Junos1# delete family inet address

[edit interfaces lo0 unit 0]
root@Junos1# commit
commit complete

[edit interfaces lo0]
root@Junos1# edit unit 10

[edit interfa…

Dell Latitude D830 SSD Upgrade

Slow Laptop Syndrome
I have a LATITUDE D830 : INTEL CORE 2 DUO T7500 4GB Ram from 2008, I did get a fairly high specification at the time, so it has always had pretty decent performance. However I haven't been using it for a while and when I did it seemed slow compared to my Core 5i desktop computer. (I use Windows 7 ultimate with the latest updates)

Laptop for Work
Now I might be doing a fair bit of travelling to customer sites in the near future and the last thing I want is a poorly performing Laptop, so I decide to ditch all the crap I had on it like iTunes, movies, miscellaneous software and cut back to a basic "work" PC. After all I do have iPhone, iPad and new kindle (soon) for all my multi media needs.

I purchased a "Corsair 120GB Force 3 SSD 2.5" SATA-III 6Gb/s Read = 550MB/s, Write = 510MB/s" from Now I am guessing that SATA-II rather that SATA-III on the system board, but the price difference between SATA-II and SATA-III was nothing …

From IOS to Junos - Day 1

Notes from the day
I am just going to dump my text notes for the day, you have no idea how long it would take to format this stuff, and hell I do it to share, not to make profit.
configure system
set root-authentication plain-text-password

set host-name Junos1
set domain-name


====== Lets get ip connectivity up and running

edit interfaces

set em0 unit 0 family inet address
**note unit 0 is logical and not physical but a bit like cisco default pysical interface
makes more sense in Junos

***exit into operational mode >
ping ---- working yippee

SSH and Telnet access
just check that I cannot telnet to ssh to routers

configure services

**should be in configure system

**tried configure system but could not jump to there, had to go to top then

configure system

set services telnet
set services ssh

**LOL - was trying to connect and still got "connection refused" have forgot to commit


**Got connected with SSH - used root
**The server has disc…

From IOS to Junos Series - Foreword

IOS to JUNOS challenge
I have set myself a small challenge of obtaining JNCIA-Junos in the next few week. To assist in achieving this to supplement the study material on the Juniper web site, I have set myself up a small lab environment using VMWare EXSi 5.0 Hypervisor and Juniper Olive (JUNOS 10.1). I got great help from

I currently have the following at my disposal from the Juniper web site:


I also bought two kindle books

JUNOS Enterprise Routing [Kindle Edition] By: Doug Marschke, Harry Reynolds
JUNOS Enterprise Switching [Kindle Edition] By: Doug Marschke, Harry Reynolds

The exam blue print can be found here

I hope to tick these off as I work through my lab. I have quickly written the following objects for myself which I will expand as I progress on my journey.

Host Name