EIGRP Filtering (GNS3 lab)
In this GNS3 lab we're looking as the various options on how we can filter updates between EIGRP speakers and then how that affects the traffic flow (as EIGRP is a distance vector
IOS
A collection of 27 posts
6to4 Tunnelling (GNS3 Lab)
This is a quick lab to look over how 6to4 tunnelling can be implemented using GNS3 1.3 and 3725 (running c3725-adventerprisek9-mz124-15.image). The topology will be as below but the important part
DMVPN setup with PSK (GNS3 Lab)
[toc] Dynamic Multipoint VPNs (DMVPN) offer a low admin overhead and scalable VPN solution. It is also efficient at routing traffic as it can dynamically reconfigure itself from a hub and spoke to
jun2acl (Juniper to Cisco ACL Script)
Recently we've needed to migrate an inherited environment away from Juniper Junos and onto Cisco IOS. As part of this a lot (!) of old an quite nasty firewall filter config needed to be
EIGRP (Named vs Legacy)
Just a quick look over the basic differences with the newer style of EIGRP config. It really is quite a bit nicer (more logcal?) layout in the config with things like authentication moving
BGP RTBH setup using exaBGP
[toc]In this post I'll describe a basic setup using Cisco IOS, IOS XR and exaBGP that will function as a BGP remotely triggered blackhole (RTBH) allowing you to null route any source/