0
votes
1answer
55 views

what would happen when macchanger to gateway mac address? [closed]

I thought arpspoof GATEWAY_IP -t VICTIM_IP can be prevented by add a static arp entry on victim side, i.e. arp -s GATEWAY_IP GATEWAY_MAC I read ...
0
votes
1answer
63 views

Export iptables logs to network storage in a limited storage dd-wrt router

Because some routers have very limited storage space; security logs are disabled in the micro version of dd-wrt. Is it possible to export the (iptables) logs to an external storage?
-1
votes
2answers
151 views

Router DDoS Protection by MAC [duplicate]

I was wondering if there are any DDoS defences where a (any) router will block all packets (for any period of time) from the MAC address of its attacker. If so, under what circumstances would this ...
3
votes
1answer
100 views

Traffic backlogged after (D)DoS attack? [closed]

About 25 hours ago, I got an e-mail from UptimeRobot (uptimerobot.com) telling me that me websites had gone down. I raced over to my server room, where my TP-Link router was completely unresponsive ...
-2
votes
1answer
362 views

Same MAC but different IP on router [closed]

If a device has same mac address but different IP on home router, is this some sort of error or hacking? What is going on? I can't attach a pic so I've listed below. Computer name for second doesn't ...
11
votes
3answers
4k views

Any reason not to enable DoS Defense in my router?

I recently found a DoS Defense setting in my DrayTek Vigor 2830 router, which is disabled as default. I'm running a very small server on this network and I take it very serious to have the server up ...
2
votes
4answers
306 views

Encrypt LAN and wifi traffic on small private network

I need some advice about encrypt all traffic on a small private network running wi-fi and LAN traffic on 192.168.0.x network. The network would comprise of client laptops connecting to the wi-fi ...
3
votes
5answers
873 views

Are there any security benefits to having a dedicated firewall?

Are there any security benefits to having a dedicated firewall rather than having a firewall established on a router? Thanks.
2
votes
1answer
884 views

Juniper SRX210, How can i enable the port 554, 9001 for 192.168.1.151 local IP?

I have been strugling to solve this but still i can not fix it. I have 192.168.1.151 PC and it has 554 and 9001 TCP/UDP open. But i need to publicly access that. In my juniper srx210 i have this ...
6
votes
4answers
1k views

Is Selling Old Cisco Routers a Security Issue?

I'm a system admin but I'm not Cisco certified and I'm not a network engineer. Basically I only use switches/routers/modems with a GUI. I've inherited a pile of old Cisco routers that are not in use ...
0
votes
2answers
68 views

opening a port on a router to all WAN ip's or just a range or specific WAN IP

Just trying to see how many people would be in favor for opening a port on a router, like port 22 or something similar for ssh, to all outside WAN connections or just a set of specific WAN ip's for ...
3
votes
3answers
199 views

Understanding DNS cache poisoning

I have just read this article on DNS cache poisoning, and while I understand it, am I right in saying that DNS cache poisoning is impossible when the server is behind a router using either an address ...
0
votes
1answer
73 views

Which brands of wireless routers and DSL modems care about security? [closed]

Which vendors have established a strong security process during development where they educate firmware developers about security issues, arrange security engineers to review the code, accept ...
0
votes
1answer
253 views

Cisco 800 Series Routers and dedicated point-to-point VPN

My company is looking for a solution where two branches can be connected securely. The goal is to have the two branches establish a vpn conection (at the router levels) so anything connected beyond ...
3
votes
2answers
1k views

how to separate a network for traffic

At the moment our all computers in one big LAN, it is the intention to separate the admin and edu (it's in a school) especially for traffic and less for security. How do this best? Firewall?, ...
1
vote
3answers
172 views

Securing HTTP traffic between data-logger and website, options

Got some IP data-loggers (that measure temp., humidity, light-level) sitting inside bunch of warehouses / stores with each warehouse / store being a different customer from my standpoint. These ...
1
vote
1answer
2k views

How to setup Ubuntu server as router

I'm getting a Fit-pc2i one of these days, and plan to use it as a router (it's the one with 2 NICs) However having never setup a linux server as a router before, I'm pretty much in the wilds here. So ...
2
votes
2answers
164 views

Can I run a web site from my home network without jeapordizing other computers on my LAN? [closed]

I have a home LAN with 5 computers and a NAS, all connected to a Linksys router which is connected to my Cox cable modem. I'm interested in having one of my computers run an IIS-based web site and to ...
1
vote
1answer
518 views

Cisco IOS rewrite http url

Is there a way that I can configure my router to rewrite http requests? So for example, if: http://www.example.com/porn.gif is being accessed, it'll be re-written as: ...
5
votes
3answers
4k views

Restrict Computer or Users from Internet but allow access to intranet and Windows Update / ePO?

So this may be impossible but I've been asked to try and find something about it. So far nothing I have found is possible. I need to restrict specific machines or user accounts from regular Internet ...
1
vote
2answers
1k views

Monitoring traffic on linux router for syn-flood

We have a linux server (Debian-Lenny) with solid-state drive, without hard disk classic. He's use as a router, so traffic is only for forward. We want to monitor connexions in able to find some ...
1
vote
3answers
906 views

looking for wifi router with restricted access to LAN

I need to set up a separate Wifi network for guests, and am looking for a decent router which can be part of the LAN but restrict access so that it can only route to the gateway/WLAN. Are there any ...
1
vote
6answers
266 views

Firewall between Web and DB servers

I had to put a firewall between our web servers and the database box. I'll confess I wasn't totally convinced it was worth the effort... but I finally did it. Unfortunately, the device I chose ...
2
votes
10answers
2k views

Isolating a computer in the network

I've got a small network and want to isolate one of the computers from the whole network. My Network: <----> Trusted PC 1 ADSL Router --> Netgear dg834g ...
0
votes
7answers
1k views

How to protect myself from promiscuous mode?

I have read that some network adapters can switch to promiscuous mode and get all the packets sent by my router. We have multiple computers here connected to the same router. They all have the WEP ...