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Junos Oliver Logical Router OSPF Lab

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Have a Juniper Oliver running in my vm environment as a test for a while. I believe it is common for people like to research network technology but would not like to purchase expansive devices to stack them at home. To make myself more understanding how ospf operate in JunOS environment,  I started to set up a small topology to configure…

Steps How to Add License into Cisco IOS

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Have to setup IPSec tunnel between two 1921 router with only IPBase IOS without security feature. Purchased it from our procuring partner. Then got a email with PAK info in it. 1. Go to www.cisco.com/go/license website , you have to have CCO account first2. Enter your PAK info3. Enter your PID and SN from show version4. Download license to your…

OSPF over GRE Over IPsec on GNS3

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Continued on the post GRE Tunnel in GNS3 Same topology as GRE one: R1, R2, R3, R4, R5, R6, R7 all uses same IOS : c3640-ik9o3s-mz.124-10.bin. 3600 Software (C3640-IK9O3S-M), Version 12.4(10), RELEASE SOFTWARE (fc1) R5 is acting as Internet Router. It is only configured local interface ip address. No static and dynamic routing configured R1, R3 will be acted as a pair…

Set Juniper SRX into Debug mode when crashed

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Recently, experienced a SRX crash failure. SRX 240H was getting into crash and rebooted itself twice. At last, it came back normal. During checking system log, unfortunately could not find out any details and clues for this crash. Only clues are from console screen. There are some dump messages showing up: [email protected]> NMI Exception on core:0Watchdog status, core 0: 0xfffe6fffffbFPA…

Checkpoint UTM272 shutdown itself because of temperature reached (60 C)

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One of my UTM272 cluster members lost connection to our management console. Even tried cold reset, it will still not showing up in Smartview monitor. Connected console cable into this UTM, and found following info in the console screen:                            Phoenix Technologies, LTD           …

GRE Tunnel in GNS3

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GNS3 Topology R1, R2, R3, R4, R5, R6, R7 all uses same IOS : c3640-ik9o3s-mz.124-10.bin. 3600 Software (C3640-IK9O3S-M), Version 12.4(10), RELEASE SOFTWARE (fc1) R5 is acting as Internet Router. It is only configured local interface ip address. No static and dynamic routing configured R1, R3 will be acted as a pair to configure GRE and IPSec Tunnel, and also configured as main…

Send email out to Internet with a Blat Command

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1. install sstunnel from http://www.stunnel.org/download/binaries.html2. Using a text editor like notepad, make a file containing what’s in the text box below. Click the Select text button to highlight the text. Note: Javascript must be enabled for the button to work. Copy the information to your clipboard by right clicking on the highlighted text and selecting Copy. Paste the information into…

BSD Router Project (BSDRP) on Vmware

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BSDRP is a nice software which allows you connect your networks with a free , full functional router in complexed topology especially for testing environment. I was looking for a nice, light weighting, full functional router which can be integrated into my ESXi VMs. I already have ASA, Checkpoint, Juniper Router, vyatta, monowall, pfsense installed. Also on my Windows 2008…

Juniper SRX 240 Chassis Cluster (High Availability) Configuration

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Working on Juniper SRX 240 Chassis Cluster Configuration. Here will list all steps what I have done from the first step. Refer to Juniper KB15504 Warning, before finish your configuration, do not try to connect SRX240 into your production environment. It will make your production network down since all interfaces except ge-0/0/0 are pre-configured into one vlan.  1. Power On…