Running rpi as dns/dhcp server along with openwrt inside mr3420

Hi,
i have run pihole quiet long, but today i have problem with my router and rpi.
So i need to reinstall both router and rpi.

router = 192.168.1.1
rpi=192.168.1.84
network config

so i plug my 4g usb modem on my router(openwrt).
i want rpi act both as dns server and dhcp server so i wired rpi to router using ethernet port.
i run pihole instalation script on rpi. once its complete.
i enable dhcp server on rpi, then i go to my router setting to put my rpi's ip.
and disable dhcp server.

problem is i dont know whether my system is correct or not.
It blocks the ads, it seems normal.

then i run ping and nslookup, it shows normal output.
but when i run traceroute, it gives me time out (*) all 30 hops.

pi@raspberrypi:~ $ dig detik.com

; <<>> DiG 9.9.5-9+deb8u10-Raspbian <<>> detik.com
;; global options: +cmd
;; Got answer:;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;detik.com.                     IN      A

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21096
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; ANSWER SECTION:
detik.com.              104     IN      A       103.49.221.211
detik.com.              104     IN      A       203.190.242.211
;; Query time: 84 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 03 00:37:09 WIB 2017
;; MSG SIZE  rcvd: 70
pi@raspberrypi:~ $ nslookup detik.com
Server:         127.0.0.1
Address:        127.0.0.1#53
Non-authoritative answer:
Name:   detik.com
Address: 203.190.242.211
Name:   detik.com
Address: 103.49.221.211
pi@raspberrypi:~ $ traceroute detik.com
traceroute to detik.com (103.49.221.211), 30 hops max, 60 byte packets
 1  192.168.1.1 (192.168.1.1)  0.473 ms  0.489 ms  0.492 ms
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *

does it look normal?

Thanks.