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GRE Tunnels III: Security awakens

By davidsamuelps on July 2, 2016July 2, 2016

Heeey! 😀 Here we are again (sorry for the delay in this post, been quite busy lately), this time we will talk about security (a little bit) on GRE tunnels. As we talked previously (see previous chapters of the GRE Saga), we can establish a tunnel between two peers, over the public internet, right? (chapter

Posted in: awakens, bytes, Cisco, connection, encapsulate, encapsulation, friend, GRE, internet, IP, ipsec, keepalive, matryoshka, MTU, multicast, ninja, overhead, packet, security, transform, transform-set, tunnel, tunnels, unicast

CCNA CCNP

GRE Tunnels

By davidsamuelps on June 4, 2016June 15, 2016

All cadets salute the GRE tunnels! 😀 Today we will talk a little about GRE tunnels, a very useful protocol that can help you a lot. As you may now, its present in CCNP R&S blueprint and CCNA v2/v3 as well blueprint (check here for more information about V2 to v3 changes). But, what are

Posted in: broadcast, CCNA, CCNP, Cisco, encapsulation, GRE, header, inside, IP, ipsec, lab, matryoshka, multicast, otters, payload, security, standard, tunnel, tunnels, unicast, virtual