Running "tcpdump" on Android shell gives error: "not executable: 32-bit ELF file"

I'm trying to install tcpdump to monitor network traffic. I've tried multiple versions from link1 and link2. Whenever I try to execute I get an error:

~$ adb connect 192.168.1.10:5555

~$ adb root

~$ adb push tcpdump /data/local

~$ adb shell

~$ su

~# cd /data/local

~# chmod 777 tcpdump

~# ./tcpdump -s 0 -v -w out.pcap

/system/bin/sh: ./tcpdump: not executable: 32-bit ELF file

Any help is appreciated.

EDIT:

~$ uname -m

i686