Monthly Archives: May 2012

rip: seperate ways to inject a default-route

Posted on May 29, 2012 by markus.wirth

Hi! Right now I am going to lab up default-routing with RIP. By the way…NO this post has nothing to do with the song “seperate ways” by “moby” :)…although its a very good song. I am going to show which … Continue reading →

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rip: route-filtering based on advertising router (extended acls)

Posted on May 27, 2012 by markus.wirth

Hi! Today I will lab a little topology with RIP. What I am going to do is to filter incoming routing updates based on the advertising router. In BGP for example it is quite easy to do that due to … Continue reading →

Posted in ACL, RIP, Routing | Tagged , , , , , , , , , | 6 Comments

REMINDER: administrative distances of routing protocols

Posted on May 27, 2012 by markus.wirth

ADs of the routing protocols: 0 – connected 1 – static 5 – eigrp summary 20 – ebgp 90 – eigrp 100 – igrp 115 – is-is 110 – ospf 120 – rip 140 – egp 160 – on demand … Continue reading →

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acl: challenge part 1 – odd and even access-list matches

Posted on May 21, 2012 by markus.wirth

ACL – Challenge Part 1 A) Write a standard ACL that matches all prefixes where the second OCTET is ODD. B) Write a standard ACL that matches all prefixes where the second OCTET is EVEN. A) Okay so we need … Continue reading →

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debugging: part 1 – basic debugging

Posted on May 9, 2012 by markus.wirth

Packet debugging: Part I – basic debugging Hi everybody! This session describes how to do packet debugging within real gear and simulated environemt. I will show this within some (not all) situations where debugging can be useful and where one … Continue reading →

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REMINDER: ICMP type codes

Posted on May 8, 2012 by markus.wirth

Type 0 — Echo Reply Type 1 — Unassigned Type 2 — Unassigned Type 3 — Destination Unreachable Type 4 — Source Quench (Deprecated) Type 5 — Redirect Type 6 — Alternate Host Address Type 7 — Unassigned Type 8 … Continue reading →

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COMING SOON: how to remotely administrate gns3 with XMING

Posted on May 5, 2012 by markus.wirth
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COMING SOON: how to use ser2net under ubuntu to make your pc/server a console-server

Posted on May 5, 2012 by markus.wirth
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is vlan1 a magic one?

Posted on May 5, 2012 by markus.wirth

Hi everybody! I searched the net again and found somebody who already did the work I wanna do and the explanations are great so I only share the link here.  http://blog.ipexpert.com/2011/01/19/old-ccie-myths-vlan-1/  Regards! Markus

Posted in Switching, Uncategorized | Leave a comment

lenovo x60 tablet (x60t) disassembly / fan replacement

Posted on May 5, 2012 by markus.wirth

Hi everybody! Yesterday night I wanted to change the fan and the heatsink of my Lenovo X60T tablet (which I am using to study) because the fan was not far from being completely wrecked and made noises so that you … Continue reading →

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