Dear all. I have problem C25 conect to external internet and APs 3710i not provide dhcp for client. i config follow: port esa0  ( ip 192.168.2.150 ), dhcp fix none  and create topology S with ( Bridged Location at AP ) based  port esa0  with ip 192.168.3.10 ( set dhcp pool ip range 192.168.3.1 to 192.168.3.254 ) . I created  Wlan and  VSN, APs registered . Use  laptop  can  see  SSID  but conect that it not recive  dhcp provide  form topology S..  if recice only ip address wrong , not conect  internet.  my pologogy network : modem internet farbic  conect  swicth G3, G3 conect Esa0  of  Controller C25. Help me . Thanks all.