ISP Gateway cannot be reached

Greetings,
I have problem with internet. I connected internet into ETH1 of CCR1036-12G-4S, then I configured address as 159.253.242.185/30 to network 159.253.242.184 on ETH1. With Winbox I can ping 159.253.242.185 but I cannot ping 159.253.242.184. Even I configured src-nat to Masquerade on ETH1 and Route 0.0.0.0/0 to ETH1 I still don’t have internet connection.

It looks like something wrong with Internet. But if I connect RJ45 with Internet directly to computer and I put my ip as 159.253.242.185 with gateway 159.253.242.184 and mask 255.255.255.252 - I have internet. I tried with other computers, it works also so it means that it isn’t LAN MAC issue.

Please help,
best regards, WZ
PS. With Winbox and IP Scan I am able to get both 159.253.242.185 and 159.253.242.184 (with MAC address) but with Ping I cannot ping 159.253.242.184 (using IP and MAC).

Hello,
I resolved it :slight_smile: I put different mask in Addresses. When I put 159.253.242.185/28, then I got automatic network 159.253.242.176. But with this address configuration I was able to ping 159.253.242.185 (my router WAN IP) and 159.253.242.184 (my ISP Gateway). With rest of configuration (like Masquerade and Routes, DNS, etc) I got Internet connection through router.
Best regards, WZ