rendered paste body[root@PT3 ~]# tcpdump -i eth0 port 4569 -vvvvvvvvvvvv
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
15:13:47.290696 IP (tos 0x0, ttl 64, id 21001, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum f02e!] UDP, length 12
15:13:47.304838 IP (tos 0x0, ttl 64, id 21002, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum e5de!] UDP, length 12
15:13:47.290708 IP (tos 0x0, ttl 64, id 21003, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum d9dd!] UDP, length 12
15:13:48.293346 IP (tos 0x0, ttl 64, id 21005, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum efae!] UDP, length 12
15:13:49.290065 IP (tos 0x0, ttl 64, id 21007, offset 0, flags [none], proto 17, length: 54) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum b5c4!] UDP, length 26
15:13:49.290097 IP (tos 0x0, ttl 64, id 21008, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum ec86!] UDP, length 12
15:13:49.290119 IP (tos 0x0, ttl 64, id 21009, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum e55e!] UDP, length 12
15:13:49.290140 IP (tos 0x0, ttl 64, id 21010, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum d95d!] UDP, length 12
15:13:57.290809 IP (tos 0x0, ttl 64, id 21016, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum ccb5!] UDP, length 12
15:14:07.290382 IP (tos 0x0, ttl 64, id 21022, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum f42e!] UDP, length 12
15:14:08.293022 IP (tos 0x0, ttl 64, id 21024, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum f3ae!] UDP, length 12
15:14:17.291267 IP (tos 0x0, ttl 64, id 21034, offset 0, flags [none], proto 17, length: 54) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum be44!] UDP, length 26
15:14:17.899704 IP (tos 0x0, ttl 64, id 21197, offset 0, flags [none], proto 17, length: 56) PT3.banshing.com.4569 > static-64-61-93-109.isp.broadviewnet.net.4569: [bad udp cksum 6cf5!] UDP, length 28
15:14:18.189376 IP (tos 0x0, ttl 41, id 18750, offset 0, flags [DF], proto 17, length: 40) static-64-61-93-109.isp.broadviewnet.net.4569 > PT3.banshing.com.4569: [udp sum ok] UDP, length 12
15:14:18.189811 IP (tos 0x0, ttl 41, id 18751, offset 0, flags [DF], proto 17, length: 67) static-64-61-93-109.isp.broadviewnet.net.4569 > PT3.banshing.com.4569: [udp sum ok] UDP, length 39
15:14:18.189883 IP (tos 0x0, ttl 64, id 21198, offset 0, flags [none], proto 17, length: 90) PT3.banshing.com.4569 > static-64-61-93-109.isp.broadviewnet.net.4569: UDP, length 62
15:14:18.484989 IP (tos 0x0, ttl 41, id 19037, offset 0, flags [DF], proto 17, length: 40) static-64-61-93-109.isp.broadviewnet.net.4569 > PT3.banshing.com.4569: [udp sum ok] UDP, length 12
15:14:18.486689 IP (tos 0x0, ttl 41, id 19040, offset 0, flags [DF], proto 17, length: 80) static-64-61-93-109.isp.broadviewnet.net.4569 > PT3.banshing.com.4569: [udp sum ok] UDP, length 52
15:14:18.486725 IP (tos 0x0, ttl 64, id 21199, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > static-64-61-93-109.isp.broadviewnet.net.4569: [bad udp cksum 5a93!] UDP, length 12
15:14:19.291189 IP (tos 0x0, ttl 64, id 21035, offset 0, flags [none], proto 17, length: 54) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum bdc4!] UDP, length 26
15:14:27.291539 IP (tos 0x0, ttl 64, id 21042, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum ed2e!] UDP, length 12
15:14:27.291564 IP (tos 0x0, ttl 64, id 21043, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum f506!] UDP, length 12
15:14:27.582974 IP (tos 0x0, ttl 64, id 21200, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > static-64-61-93-109.isp.broadviewnet.net.4569: [bad udp cksum 5198!] UDP, length 12
15:14:27.871184 IP (tos 0x0, ttl 41, id 27986, offset 0, flags [DF], proto 17, length: 40) static-64-61-93-109.isp.broadviewnet.net.4569 > PT3.banshing.com.4569: [udp sum ok] UDP, length 12
15:14:27.871232 IP (tos 0x0, ttl 64, id 21201, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > static-64-61-93-109.isp.broadviewnet.net.4569: [bad udp cksum fd96!] UDP, length 12
15:14:28.294176 IP (tos 0x0, ttl 64, id 21046, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum ecae!] UDP, length 12
15:14:29.291088 IP (tos 0x0, ttl 64, id 21048, offset 0, flags [none], proto 17, length: 54) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum bdc4!] UDP, length 26
15:14:29.291121 IP (tos 0x0, ttl 64, id 21049, offset 0, flags [none], proto 17, length: 40) PT3.banshing.com.4569 > 58.185.151.160.4569: [bad udp cksum f486!] UDP, length 12