What is DPD_REQUEST & DPD_ACK????
Posted on 2009-05-26
In my sonicwall logs I keep getting the same entries every minute.
05/26/2009 17:15:34.928 RECEIVED<<< ISAKMP OAK INFO (InitCookie 0xefa8e314417a844c, MsgID: 0xA5FADE55) *(HASH, NOTIFY:DPD_ACK) [my ip], 500 [thier ip], 500
05/26/2009 17:15:34.880 SENDING>>>> ISAKMP OAK INFO (InitCookie 0xefa8e314417a844c, MsgID: 0x744FF034) *(HASH, NOTIFY:DPD_REQUEST) [their ip], 500 [my ip], 500
Does anyone know what this means? I can't find anything on googl;e or in the Knowledge base on expert's exchange. I think this has something to do with a Site to Site vpn but am not sure. All I know is my remote site is having connection issues so I pulled this from their sonicwall. Using Sonicwall Standard 3.5 OS