Author Archives: rootuser

A case study of DHCP snooping and IP Source Guard

dhcp-snooping-and-ip-source-guard-study

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TCPdump compatible traces in IOS

This post will show how to perform LibPcap snooping on IOS devices. Two types of IOS routers (7200 and csr1000v) are covered in the document. tcpdump-on-ios

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VTP v.3 Study

vtp-3-notes

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Prio field STP within the BID of the BPDU

explanation-bpdu-bid-priority-in-pvst-plus

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IPV6 address formats explained

ipv6-address-analysis

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IPV6 and Stateless Auto Configuration and Stateless DHCP

ipv6-and-stateless-autoconfiguration-and-m-flag

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A Cisco FLEXLINK STUDY

A study in Flexlinks.. FLEXlink-study

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Router Failover Configuration with BGP and NAT with two ISPs

This is for the more hard core Cisco IOS users: With multi-homed BGP you can let your router failover internet service providers. You can track their availability with SLA, or simply let BGP do its thing. The thing that had … Continue reading

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Let’s get real again, let’s get our lives back again

The digital revolution has led modern people into such a social isolation that despite the many social media, we seem to be swallowed as a whole into nothingness. So we try to make sense of our ┬álives,- that inadvertently gets … Continue reading

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Celebrate life with your loved ones from time to time

After all: what else is there? Don’t forget the only certainty in life is that they’re not going to be around for ever.

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