BELKIN ROUTER F6D4630-4 v2 (SUSPICIOUS?)

Hi all, newbie here! Today i went into my routers setting & noticed, things in the security log, i don't understand, so i thought you guys maybe able to help?............

04/30/2015 17:53:37 sending ACK to 192.168.2.4
04/30/2015 16:56:15 If(ATM1) PPP connection ok !
04/30/2015 16:56:14 ATM1 get IP:87.102.32.104
04/30/2015 16:56:12 ATM1 start PPP
04/30/2015 16:56:11 ADSL Media Up !
04/30/2015 16:55:59 sending ACK to 192.168.2.4
04/30/2015 16:55:50 sending ACK to 192.168.2.2
04/30/2015 16:52:18 If(ATM1) PPP connection ok !
04/30/2015 16:52:17 ATM1 get IP:87.102.32.104
04/30/2015 16:52:15 ATM1 start PPP
04/30/2015 16:52:15 Dial On Demand(ATM1)
04/30/2015 16:52:15 ADSL Media Up !
04/30/2015 16:52:00 sending ACK to 192.168.2.4
04/30/2015 16:51:57 sending ACK to 192.168.2.2
04/30/2015 16:47:56 192.168.2.2 login success
04/30/2015 16:44:06 User from 192.168.2.2 timed out
04/30/2015 16:43:10 **UDP Loop** 192.3.194.178, 43385->> 87.102.32.104, 19 (from ATM1 Inbound)
04/30/2015 16:26:25 192.168.2.2 login success
04/30/2015 16:26:10 sending ACK to 192.168.2.4
04/30/2015 16:24:39 NTP Date/Time updated.
04/30/2015 16:24:34 If(ATM1) PPP connection ok !
04/30/2015 16:24:33 ATM1 get IP:87.102.32.104
04/30/2015 16:24:32 ATM1 start PPP
04/30/2015 16:24:32 Dial On Demand(ATM1)
04/30/2015 16:24:32 ADSL Media Up !
04/30/2015 16:24:22 sending ACK to 192.168.2.2

Does it look normal, or should i be worried?

Thanks....

Iain..........:)