David Sudjiman

R2(config)#int lo0
R2(config-if)#ipv addr fec0::2:1/112
% FEC0::2:1/112 can not be configured on Loopback0, overlapping
R2(config-if)# ipv addr FEC0::12:3/112
% FEC0::12:3/112 can not be configured on Loopback0, overlapping
R2(config-if)# ipv addr FEC0::222:1/112
R2(config-if)# ipv addr FEC0::2:1/112  

R2(config-if)#do sh ver | i IOS
Cisco IOS Software, 3600 Software (C3640-JS-M), Version 12.4(18), RELEASE SOFTWARE (fc1)

Why am I getting these overlapping errors?

In my previous post I threw out a few thoughts about the idea of enticing users to switch to IPv6 – a sort of variation on the long-running “we need an IPv6 killer app” argument – and the contradictions such enticement efforts would present: Mainly that IP of any version should be transparent to end-users who only care about services, not how those services are delivered. Any enticements bring IPv6 into the spotlight, where it should not be (except for routing and infrastructure geeks like me).

Looking at the other side of this transparency issue, just getting IPv6 rolled out brings unwanted attention to it: Users might have to upgrade operating systems, and might encounter problems reaching some destinations and services as the public Internet becomes split between an IPv4 world and an IPv6 world.

Read more from IPv6 at the 2008 Olympics by Jeff Doyle.

Arden Packeer. CCIE #20716
http://ardenpackeer.com/blog/ccie-20716/

Victor Cappuccio. CCIE Number: 20657
http://vcappuccio.wordpress.com/2008/04/30/ccie-number-20657/

Ethan Banks. CCIE #20655
http://www.cciecandidate.com/?p=412

and

Triple CCIE
Joe Harris. CCIE # 6200 (R&S, Security & SP)
http://6200networks.com/2008/04/27/i-passed/

If you think Apple Mac keyboard was cool, think again.

http://www.artlebedev.com/everything/optimus-tactus/

Depicts one million plastic cups, the number used on airline flights in the US every six hours.

For complete art appreciation, visit http://www.chrisjordan.com/current_set2.php?id=7

This is the simplest network type for OSPF. Two routers connected via point-to-point link. For this particular network, there is no need to have DR and BDR. Why, because each router will sending updates to each other and having DR and BDR will not change the situation. Each router will send multicast hello packets using address 224.0.0.5.

Default OSPF hello and dead intervals is 10 seconds and 40 seconds, respectively.

• Partial-mesh or star network topology, using subinterface.
• Different subnet for each subinterface.
• Hello Timer 10 seconds.
• Automatic adjacency, no DR/BDR elected.

Continue reading »

• Partial-mesh or star network topology.
• One IP Subnet.
• Hello Timer 30 seconds.
• Manual adjacency, no DR/BDR elected.

Continue reading »

• Partial-mesh or star network topology.
• One IP Subnet.
• Hello Timer 30 seconds.
• Automatic adjacency, no DR/BDR elected.

Continue reading »

Non Broadcast Multi Access (NBMA) - RFC 2328 Standard

• Full or partial-mesh network topology.
• One IP Subnet.
• Hello Timer 30 seconds.
• Manual adjacency, DR/BDR elected.

From the previous example, we see that we’re using broadcast mode on NBMA network. What if we don’t want to use broadcast mode since it’s a non-broadcast network, anyway?

Continue reading »

Wandering around looking the job market and found this.

Demonstrated enthusiasm and drive with the ability to work through conflicting pressures and priorities.

Why would a person want to work in this type of job? Pressures are always there. But conflicting pressures? This company must have a really big problem since the word conflicting and pressures should not be set together.