Networking Blog

A few weeks ago, i was confronted with a Juniper Secure Services Gateway (aka SSG) for the first time. After playing a little bit with the box, i quickly learned to like her.
Okay, it took a time to get used to the CLI with its behaviour and the Virtual-System/-Router stuff, but the WebUI is very [...]

When you need to recover missing BGP MD5 password on Juniper routers, you have the possibility to extract it from a specific file.
First, you have to start a shell:

alex@M10> start shell
% su -
Password:
root@M10%

After changing to the root user, you have the necessary permissions to view the file /var/etc/keyadmin.conf

root@M10% cd /var/etc/
root@M10% more keyadmin.conf
tcp 179 0.0.0.0 <IP [...]

Just now, i added a new sticky page to my blog.
It’s a small comparison between Cisco IOS and Juniper JunOS CLI commands.
See here…

(Information taken from j-nsp mailing list and vendors homepages)
MTU Juniper
NOTE: The actual frames transmitted also contain cyclic redundancy check (CRC) bits, which are not part of the media MTU. For example, the media MTU for a Gigabit Ethernet interface is specified as 1500 bytes, but the largest possible frame size is actually 1504 bytes; you [...]

(taken from Juniper website)
How the Active Route Is Determined
For each prefix in the routing table, the routing protocol process selects a single best path, called the active route. The algorithm for determining the active route is as follows:

Choose the path with the lowest preference value (routing protocol process preference). Routes that are not eligible to [...]

Since JunOS 7.4, there is an feature which enables your Juniper router to backup its current configuration to an remote server by SSH or FTP.
Cisco offers such a functionality too, but their engineers took a little bit longer
Its quite easy to configure…
Note: example is using “net_admin” with password “c”

# Juniper set statements:
—————————
set system archival [...]

JunOS has a bulk of different tables for building the global routing table.
I was searching several times for informations what table holds which routes, because i can’t keep it in mind.
Therefore i decided to write it down in my blog…
Here comes the summary (taken from Juniper website)

Table
Purpose

bgp.isovpn.0
Border Gateway Protocol (BGP) reachability information for ISO virtual [...]