Routing is the process of moving packets across a network from one host to a another. It is usually performed by dedicated devices called routers.

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Sending Probe Request Frames | Receving Probe Response — Scapy

OBJECTIVE Send probe request frame subtype=4 and receive probe response subtype=5 with Scapy Ultimate goal is to detect access points nearby via Scapy ( not by sniffing beacon frames ) The object ...
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OSCP (Offensive Security's PWK) Requirements [duplicate]

I wanted to ask a few questions, mainly referred to those who completed OSCP or who know about it. I want to take the course, I know that understanding of TCP/IP, IP subnetting and addressing and ...
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19 views

Does altering the routing table to my hub defeat the purpose of a VPN?

I am running a VPN on my server with openvpn. When running openvpn I have a shell script that runs afterwards: ip rule add from 192.168.0.19 table 128 ip route add table 128 to 192.168.0.0/24 dev ...
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Variant of OSX.pirrit

Today while working with a customer, Someone came in with a peculiar problem. They could only access websites through https, and nothing through http. I tried the regular gauntlet of fixes for network ...
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2answers
124 views

Is a router without inbound firewall a security issue across the internet?

Imagine this scenario: Alice has a private subnet (192.168.1.0/24) connected to a router which is also connected to local network B. Alice's router performs NAT (only using MASQUERADE; outbound ...
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Is it possible to Use someone public IP? [closed]

I am quite aware of the networking. But I have a confusion which I am searching over internet but did not come to any solution. Can we assign any specific IP to our PC or any device. Like I want to ...
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193 views

Gargoyle (OpenWRT) firewall routing for VPN

At present I have Gargoyle setup on my WNDR3700 to connection to a VPN provider in order to provide a little privacy. However this prevents me from connecting remotely to my home network. Previously I ...
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83 views

is it possible to intercept network packets outside lan?

User A is in a different country than user B and they have different IP ranges and ISPs. Is it possible for A to intercept B's communication sent to a third party, without using techniques like ...
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3answers
83 views

Does a WAN to LAN Route Conversion Through a Router Adds Security?

Use of a Router is the first solution for adding a security layer to any LAN with N machines, connected to the internet (through its firewall settings). My question is does the WAN to LAN conversion ...
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57 views

I can't get the honeyd to run in loopback interface

I've been working on honeyd for two day and am struggling with it. What I'd like to do is that I'd want to run it on my own localhost (i.e. loopback interface). But I'm keep getting the following ...
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395 views

Vulnerabilities of pure NAT without firewall

Following some of the comments on this question, I was curious about the security vulnerabilities of NAT. There are similar threads here and here but they discuss router vulnerabilities rather than ...
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3answers
651 views

How to track back a dynamic IP address?

Is there a way to trace back who was using a public dynamic IP address previously? Would it be possible to find out the MAC address of the host using the IP address at a given time? (e.g., can you ...
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135 views

SDN Security - why not attack the controller itself?

I have been looking into SDN (Software Defined Networking) and one advantage of using this is to be able to redirect traffic to stop DDoS attacks. The traffic is ultimately thrown away. My question ...
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2answers
89 views

Safety of routing a network to a firewall

I am studying for my CompTIA Security+ qualification and have come across the following question. Question : You are implementing a testing environment for a development team. They use several ...
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5answers
2k views

How secure is binding to localhost in order to prevent remote connections?

Let's say we're running a service that's bound to localhost (127.0.0.1), and the goal is to only allow local clients (i.e. from the same machine only) What techniques might be used to break this ...
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1answer
6k views

Understanding OpenWRT LuCI Firewall Routing with VPN

I'm still fairly new to networking, and I'm having a little trouble grasping some concepts of the proper firewall rules I need to implement for my desired setup. I'm setting up a router with OpenWRT ...
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1answer
1k views

Attackers of Google DNS hijacking

As we know Google DNS server (8.8.8.8) in 14th and 15th March was hijacked in Sao Paulo. And subsequent to this event, BGPmon.org announced an alert. Now, In a course assignment, we are asked to ...
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2answers
1k views

How can I obtain the internal IP of a computer behind NAT but reachable via certain TCP port?

I want to obtain internal IP of a remote computer behind a NAT that I can reach by using some port, say myhost.farfar.away port 11122TCP: C:\>telnet myhost.farfar.away 11122 SSH-2.0-OpenSSH_6.6....
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2answers
267 views

Why does Tor use a new route every few minutes

As far as I know, Tor selects three new nodes every few minutes. What is the advantage of this? The only thing I came up with was to prevent "Bad exit nodes" from viewing too much of your (hopefully ...
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1answer
155 views

Traffic anonymization through routing - software and algorithms

I stumbled upon an interview with "the grugq" in which he is talking about how hackers anonymize their traffic, i.e. hide their original ip address (- this is also what I will mean by "anonymizing" in ...
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1answer
326 views

How to turn of telnet and FTP on Thomson 789vn router? [closed]

I have run a port scan against a Thomson 789vn router and have noticed to my surprise that its HTTP as well as telnet and FTP ports are open. How can one turn off telnet (also FTP) using the router's ...
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1answer
88 views

unfamiliar IP when logging into ssh server

I just noticed something today, and Now I am curious... I was on my shell server, an i was wondering who was on, so I gave the command $w and saw this: j0h@server:~$ w 22:06:02 up 18 days, 7:02, ...
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3answers
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How can a webpage get the MAC address?

I was logged on to my router and filling out some information. I clicked a button and a field was automatically filled in with my computer's MAC address. How is this possible? Does it present a ...
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2answers
276 views

Solution for traffic capturing from router

i'm a newbie and i'm having a problem that i can't find it by google. I'm researching abbout DDoS detecting method now. As we can see that nowadays people often analyze networking traffic from router ...
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2answers
323 views

Using HTTPS, can the target domain be seen?

If I go to https://google.com/q=test_query with from my browser, what traffic can be seen on the router? Can the domain name (google.com) be seen? If so, can I block all of the traffic to a web page ...
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336 views

How should I configure my Tor-dedicated firewall for optimum security?

I'm setting up a Tor-based isolating proxy using the 'Anonymizing Middlebox' iptables rules specified here: https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy i.e. iptables -t nat -...
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499 views

Outbound Port 443 Open but Not Allowing SSH [closed]

My college wireless network has a firewall blocking all outbound ports except 443 and 80. The wired network, however, has none of these restrictions. I can connect to HTTPS sites (obviously). On my ...
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45 views

How does BGP filtering work to prevent routing hijacking? [duplicate]

I've been reading for a while but yet do not properly understand how is BGP filtering used to prevent "attacks" such the recent Indosat's problem. Do not copy&paste Cisco's site, I have read all ...
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1answer
22k views

Router detecting port scan and ack flood attack

Over the past few days, I'm noticing that the log of my wireless router is showing an ACK flood attack from various IP addresses. I use a D-Link DIR-600L. I've searched through the internet, also ...
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1answer
2k views

Recent Fritz Box exploit

Background info: About 50% of the ADSL and cable internet access in Germany (and presumably parts of the EU) goes over AVM Fritz routers, either verbatim or rebranded as e.g. "1&1 Home Server" or ...
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529 views

Proxy via pfSense and exclusions for DNS

I have posted this to NetworkEngineering.SE, as that seems the more suitable audience for this question. I will leave this question open here but am happy to see it closed. I just did not want to ...
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2answers
274 views

Provider can access my local network?

I recently talked with my ISP about many things, basically related to my (little) company security, this guy is a networking guru to me, but he did a strange thing that worries me. Basically I have a ...
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5answers
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Is dd-wrt generally more secure than manufacturer's firmware?

I have been advised to use dd-wrt, for richness of features and heightened security. The argument about security is that major manufacturers don't care much about the firmware, release with a lot of ...
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1answer
272 views

What features boost security for a home edge router?

I want to hide my home network behind a router and not worry about firewalls on internet-facing devices. Furthermore, one PC is going to be hosting some services, so I guess I need port forwarding as ...
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2answers
302 views

Indirectly relaying intranet server to outside world

I have an internal network of IP network cameras. The feeds from these cameras are ingested by a single server and presented from a unified web interface both internally and to the outside world (both ...
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1answer
2k views

Is my ISP BGP/DNS hijacking?

I've noticed some very suspicious activity from my ISP. Sometimes I would notice that when I ping google.com it would resolve to an IP which is owned by my ISP. I currently don't have an example ...
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3answers
6k views

For security reasons, can I block ping response on my router without disabling my network?

I seem to have a serious problem of being attacked and after looking up the attack source, 99% come from China, then Korea, Hong Kong etc. Here is a fraction of the report from my Router, which is a ...
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1answer
1k views

Netgear WNDR4000 open port 53

Why is port 53 open on the WAN side of the router? And more importantly how do I close it? Port 53 is not one of my forwarded ports. Discovered by doing nmap -pT:1-64 <my-external-IP> -Pn ...
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683 views

What are the Security Risks of Disabling Reverse Path Filtering

Reverse Path Filters are generally used to disable asymmetric routing where an application has a different incoming and outgoing routes. So idea is to prevent packet entering from one interface ...
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173 views

Verizon wireless router is pinging my web server - is this ok or bad? [closed]

So I'm working from a local cafe, doing some web development, and need to see something in my Apache's access log. And to my surprise, in the log I see, every 30 seconds or so, a request for my root ...
7
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1answer
1k views

DSL Modem Compromised?

Just found out that the primary & secondary DNS servers have been changed to 95.211.156.101 & 5.45.75.11. I had the following setup in place. MAC filtering and WPA2 for WiFi. ...
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3answers
3k views

What does the email header-line “message opened by mailclient” mean?

Today a Belgian MP claimed (backed up by a security expert) that her email headers show that her email was read during routing (text in Dutch). The published screenshot of the headers highlights the ...
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2answers
1k views

Could my computer be infiltrated if someone knows my external IP? [closed]

Could my computer be compromised if someone knew my external IP? I know that when you type that in it just goes into the router page, but my computer is connected to said router. If so, what is the ...
3
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295 views

Routing Protocol Encryption

As far as I know 'newer' versions of routing protocols support authentication between routers. What about encryption and integrity checks? Some implementations like this one from Cisco use MD5, which ...
3
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1answer
857 views

How is a Tor hidden service immune to exit node attacks?

Let me explain with a nifty diagram: IP/RP <-> bunch of Tor clients/node (Tor circuit) <-> Tor hidden service Wouldn't the last Tor client in the circuit knows that the message is for the Tor ...
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1answer
102 views

Set Gateway for our LAN

I am new to Networking. In our organization we try to setup gateway for security purpose so that we can block certain harmful websites. All I know is gateway is a device. What we have is the LAN setup,...
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2answers
141 views

non-MiTM Reverse SSL

Do non-MiTM Reverse SSL Proxies exist? Or do all proxies that do SSL-SSL mappings decode and then re-encode HTTPS traffic? If this is the case and I want to map https://mypublicdomain.com -> https://...
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2answers
399 views

Which information does a standard router see?

I currently use the WLAN of my neighbours (with their accordance). It uses WPA2 and the DSL router is a Fritz!Box 7170 (see English manual). Which information can a user with an admin account of this ...
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1answer
914 views

The Pirate Bay's new Hosting Architecture [closed]

I read this article a moment ago: http://www.geek.com/news/the-pirate-bay-is-now-hosted-anonymously-in-the-cloud-1522725/ But it was very light on details. Is an architecture as described in this ...
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1answer
454 views

Security w/ Router Behind a Router?

I have a SMB (small-to-medium-business) router (router x) that my workstations run off of in my small business. I wanted to offer my customers wireless internet while they wait for service so I ...