Qnap udp traffic unreplied mac#

So what is going on? Am I doing something wrong with UDP NAT? I want DNS proxy listen on 0.0.0.0 or and transparently proxy my Linux host's DNS queries. TCP reply packet always correctly SNATed. While TCP doesn't encounter such issue ( dnscrypt-proxy also serves TCP). And dig and nslookup can get reply from transparent DNS proxy. I saw on wireshark the reply packet correctly SNATed. Hi All, I am looking at monitoring the Traffic off a 10GBE Qnap Nic. Download the Kodi V18 OPKG file from here supported by QNAP QTS. Official QNAP IP remote control or QNAP Q Remote app for controlling user-interface. HDMI-enabled NAS for easy installation via the official QNAP HD Station Application. Here are some screen shots of the blocked traffic. Other than a google and an aws IP, it looks like it is phoning home to China.

Qnap udp traffic unreplied mac#

My browser can't open URLs, and nslookup and dig say: reply from unexpected source: 192.168.3.60#1053, expected 192.168.3.1#53 Mac or Windows system on the same network as the QNAP NAS. QNAP Suspicious Outbound TCP Traffic by filovirus » Fri 10:34 am I reviewed my firewall blocked log and I am noticed some outbound TCP traffic from my QNAP that is concerning me. ( -j REDIRECT is equal to -j DNAT -to 127.0.0.1:)ĭidn't work. Or iptables -t nat -I OUTPUT -p udp -dport 53 -j DNAT -to 127.0.0.1:1053 This is what I found from Internet how we transparent proxy UDP traffic: iptables -t nat -I OUTPUT -p udp -dport 53 -j REDIRECT-to-ports 1053 If this command gives reply, Plug Qnap another computer and change Ip adress which doesnt exist in your network. I wanted to make all my Linux host's DNS queries transparently use that proxy. For IP possable conflict, Plug out Qnap’s ethernt cable from your swith, open command (windows -> start, then typ cmd) and type ping 169.254.100.100 (or whatever is your Qnap ip). I ran dnscrypt-proxy or tor on Linux listning on :1053 to server DNS.