The small igraph visualization in the previous post shows the basics of what you can do with the BulkOrigin & BulkPeer functions, and I thought a larger example with some basic D3 tossed in might be even more useful.

Assuming you have the previous functions in your environment, the following builds a larger graph structure (the IPs came from an overnight sample of pcap captured communication between my MacBook Pro & cloud services) and plots a similar circular graph:

library(igraph)
 
ips = c("100.43.81.11","100.43.81.7","107.20.39.216","108.166.87.63","109.152.4.217","109.73.79.58","119.235.237.17","128.12.248.13","128.221.197.57","128.221.197.60","128.221.224.57","129.241.249.6","134.226.56.7","137.157.8.253","137.69.117.58","142.56.86.35","146.255.96.169","150.203.4.24","152.62.109.57","152.62.109.62","160.83.30.185","160.83.30.202","160.83.72.205","161.69.220.1","168.159.192.57","168.244.164.254","173.165.182.190","173.57.120.151","175.41.236.5","176.34.78.244","178.85.44.139","184.172.0.214","184.72.187.192","193.164.138.35","194.203.96.184","198.22.122.158","199.181.136.59","204.191.88.251","204.4.182.15","205.185.121.149","206.112.95.181","206.47.249.246","207.189.121.46","207.54.134.4","209.221.90.250","212.36.53.166","216.119.144.209","216.43.0.10","23.20.117.241","23.20.204.157","23.20.9.81","23.22.63.190","24.207.64.10","24.64.233.203","37.59.16.223","49.212.154.200","50.16.130.169","50.16.179.34","50.16.29.33","50.17.13.221","50.17.43.219","50.18.234.67","63.71.9.108","64.102.249.7","64.31.190.1","65.210.5.50","65.52.1.12","65.60.80.199","66.152.247.114","66.193.16.162","66.249.71.143","66.249.71.47","66.249.72.76","66.41.34.181","69.164.221.186","69.171.229.245","69.28.149.29","70.164.152.31","71.127.49.50","71.41.139.254","71.87.20.2","74.112.131.127","74.114.47.11","74.121.22.10","74.125.178.81","74.125.178.82","74.125.178.88","74.125.178.94","74.176.163.56","76.118.2.138","76.126.174.105","76.14.60.62","76.168.198.238","76.22.130.45","77.79.6.37","81.137.59.193","82.132.239.186","82.132.239.97","8.28.16.254","83.111.54.154","83.251.15.145","84.61.15.10","85.90.76.149","88.211.53.36","89.204.182.67","93.186.30.114","96.27.136.169","97.107.138.192","98.158.20.231","98.158.20.237")
origin = BulkOrigin(ips)
peers = BulkPeer(ips)
 
g = graph.empty() + vertices(ips,size=10,color="red",group=1)
g = g + vertices(unique(c(peers$Peer.AS, origin$AS)),size=10,color="lightblue",group=2)
V(g)$label = c(ips, unique(c(peers$Peer.AS, origin$AS)))
ip.edges = lapply(ips,function(x) {
  c(x,origin[origin$IP==x,]$AS)
})
bgp.edges = lapply(unique(origin$BGP.Prefix),function(x) {
  startAS = unique(origin[origin$BGP.Prefix==x,]$AS)
  pAS = peers[peers$BGP.Prefix==x,]$Peer.AS
  lapply(pAS,function(y) {
    c(startAS,y)
  })
})
g = g + edges(unlist(ip.edges))
g = g + edges(unlist(bgp.edges))
E(g)$weight = 1
g = simplify(g, edge.attr.comb=list(weight="sum"))
E(g)$arrow.size = 0
g$layout = layout.circle
plot(g)

I’ll let you run that to see how horrid a large, style-/layout-unmodified circular layout graph looks.

Thanks to a snippet on StackOverflow, it’s really easy to get this into D3:

library(RJSONIO) 
temp<-cbind(V(g)$name,V(g)$group)
colnames(temp)<-c("name","group")
js1<-toJSON(temp)
write.graph(g,"/tmp/edgelist.csv",format="edgelist")
edges<-read.csv("/tmp/edgelist.csv",sep=" ",header=F)
colnames(edges)<-c("source","target")
edges<-as.matrix(edges)
js2<-toJSON(edges)
asn<-paste('{"nodes":',js1,',"links":',js2,'}',sep="")
write(asn,file="/tmp/asn.json")

We can take the resulting asn.json file and use it as a drop-in replacement for one of the example D3 force-directed layout building blocks and produce this:

Click for larger

Click for larger

Rather than view a static image, you can view the resulting D3 visualization (warning: it’s fairly big).

Both the conversion snippet and the D3 code can be easily tweaked to add more detail and be a tad more interactive/informative, but I’m hoping this larger example provides further inspiration for folks looking to do computer network analysis & visualization with R and may also help some others build more linkages between R & D3.