I am not sure where you got your information from - but it is pretty outdated. In the early implementation of EIGRP the network command did not accept a wildcard mask and the network command would operate on classful assumptions. But for a very long time the improvements in EIGRP have taken a wildcard mask. And with or without a wildcard mask the protocol advertises individual subnet routes.
And the fact that the network statement would operate on classful assumptions does not have any bearing on whether the protocol supports VLSM. The essence of VLSM is the ability to have (and to advertise) subnets with different masks within the same major network. For example the ability to have /24 masks on LAN segments and to have /30 masks on serial links. And EIGRP has supported that since the beginning.
If I have not adequately understood something in your question and my answer does not address your question then perhaps you can clarify a bit so that I can provide better answers.
Hello Rick, thanks for your reply. The Cisco CCNA Study Guide gives the syntax as simply "network " (no wildcard mask). So, if my network statement is something like "network 192.168.1.192", does EIGRP advertise a /27 subnet? Thanks again.
If that is what the CCNA study guide gives as the syntax then the guide is certainly due for a revision because the syntax changed quite a while back. If you enter the network without a mask then EIGRP will interpret it with the natural (default) mask.
Also to clarify: the mask that you enter (or do not enter) does not have anything to do with what EIGRP advertises. The network statement helps EIGRP decide which interfaces to include in the protocol. Once EIGRP has included an interface then it advertises the mask of the address on the interface.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.