Network Engineer – F.O.C.U.S Follow One Course Until Successful
Example: Configuring Destination NAT for IP Address and Port Translation Step-by-Step Procedure The following example requires you to navigate throughout various levels in the configuration hierarchy. For instructions on how to do that, see Using the CLI Editor in Configuration Mode….
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This will resume the different configuration ( for now will add more with time ) : For labs ( EVE-NG ) I suggest some applications : Windows base: Iperf, Ostinato and the easiest one Simply multicast testing tools ( no igmp v3 ) Linux base:…
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All dynamic addressing start with RA messages ( they are sent every 200ms ) An RA ICMPv6 is sent to all IPv6 Devices ( FF02::1 ) Or when an RS iICMPv6 To all routers ( FF02::2 ) received from the HOST…
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Types of IPv6 addresses There are few types of addresses w need to know about. These are: Global Addresses – Unique, global addresses used on the Internet. They use the following prefix 2000::/3 ( Routable ) Link Local Addresses…
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Quick remember ( currently in the making will clean it up after ) Can use the drone version or the GUI ( i prefer the drone version ( linux ) and go through the windows version when labing ( EVE-NG…
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This is a quick remember for me, i will redo this section in more details soon. VRF “VPN Routing and Forwarding” VRF is used to isolate different clients, sites, etc… each vrf have its own routing table. Without MPLS it is…
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Problem Description: A bridging loop or spanning tree loop caused a network outage. To break the loop you’ve pulled one of the redundant links or shut down one of the switches that are participating in the loop but now you’re…
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Display Filter References https://www.wireshark.org/docs/dfref/ Variables : == != or && and not | “with” tcp. udp. ip.src ip.dst tcp.windows_size == 0 && tcp.flags.reset !=1 frame.len<1500 http sip. icmp ip.src in {192.168.10.1 8.8.8.8} tcp in {80…
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There a list of filters for Wireshark eq / == or / || and / && gt / > ge / >= le / <= not / != ne / != contains matches ()