With code 9.7 released Cisco decided to add two VERY important features. Route based VPN with VTIs, and bridge groups! This article will show a quick configuration of a route based VPN with ASAs! Previously to do something like this you would need to build a GRE tunnel over IPSEC with a second router terminating …
Category Archives: EIGRP
Basic EIGRP Manual Summarization and Null0
EIGRP Summarization is used to simplify our routing table and advertise a summary instead of a bunch of prefixes that look the same. My current network topology is simple, I’ve basically configured EIGRP, then used the “network 0.0.0.0” command to advertise everything and form neighbors. Here is what my routing table looks like …
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Basic EIGRP Auto-Summary
In the above topology I have auto-summary enabled on R1 and R2. R3 does not have auto-summary. The result of this config is R1 and R2 will actually advertise the 10.0.0.0/8 network, since both of those 10. networks reside in that classful boundary. Since their only neighbor is R3, R3 will have a duplicate route …
Different Ways to Manipulate an EIGRP path
Today I’m going to be talking about the possible ways we could manipulate paths in our EIGRP routing domain. Let’s take a look at our topology… R1 has two loopback interfaces. Loopback 1 – 10.0.1.1/24 Loopback 2 – 10.0.2.1/24 These will represent the networks we are trying to reach. The link between R1 and …
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Path Manipulation via EIGRP and OSPF Redistribution
On IOSV1 we have two networks that we need to reach from IOSV4. 1.1.1.0/24 1.1.2.0/24 1.1.3.0/24 The link between IOSV2 and IOSV4 is 10.0.3.0/30 The link between IOSV3 and IOSV 4 is 10.0.4.0/30 The situation: Our company runs OSPF, and we just acquire d another company that runs EIGRP. We are keeping their topology and …
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