[R] k paths from a single vertex

[Manon Lily Ragonnet-cronin]

Dear all,
I am analysis networks using both igraph and network/ sna packages.
I want to find all the nodes within 3 steps of a specific node but  
cannot find a function to do this. I know that kpath.census can  
generate tables for the entire network but my network is too large for  
this to be an viable solution (~7000 nodes and fully connected, so  
that I cannot break it down into clusters and analyse each cluster  
independently).
Any ideas?
Thanks very much,
Manon

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