Monthly Archives: May 2012

rip: seperate ways to inject a default-route

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)

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

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REMINDER: administrative distances of routing protocols

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

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

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

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

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