.PS

R: box "\fCrouter\fR"
move
A: box "\fCatom\fR"
circle rad 0.02 at R.s filled 1
circle rad 0.02 at A.s filled 1
line from R.s down 0.4 "" ".1 " rjust
line from A.s down 0.4 "" ".2 " rjust
linethick = 2
E: line from R.sw - (0.2, 0.4) to A.se - (-0.2, 0.4) "" "" "Ethernet"
"10.0.0.0/24  " rjust at E.w
.PE