Can a router bypass Securly Classroom? [closed]

Suppose there was a computer that run an application called Securly Classroom. If you were to configure a router correctly (for example, to proxy data through Tor) would it be able to bypass that application?

how attackers make DNS servers for router Dns hijacking?

some attackers take over the router and reconfigure the DNS settings, , and re-routing traffic to compromised DNS servers.
how attackers make DNS servers for router Dns hijacking?

router – Spring integration route can’t dispatch message

So, problem is with router.
When the router try send message to channel I’l got the error: Dispatcher has no subscribers for channel ‘newTypingNotificationHandler.input’. But I have integrationFlow defenition for this channel name.

public IntegrationFlow routeEcmIncomeRq(AbstractMessageRouter typeNotificationRouter) {
    return IntegrationFlows.from(FROM_CHANNEL)
            .routeToRecipients(r -> r
                    .recipientFlow(p -> p instanceof TypingNotificationDto,
                            f -> f.route(typeNotificationRouter)

public AbstractMessageRouter typeNotificationRouter(IncomeRepository incomeRepository) {
    return new AbstractMessageRouter() {
        protected Collection<MessageChannel> determineTargetChannels(Message<?> message) {
            TypingNotificationDto messagePayload = (TypingNotificationDto) message.getPayload();

            if (!incomeRepository.existsById(StringUtil.ecdFileIdToUuid(messagePayload.getEcdDocumentImage().getDocumentSource()))) {
                return Collections.singleton("newTypingNotificationHandler.input").get());
            } else {
                return Collections.singleton("existsTypingNotificationHandler.input").get());

public IntegrationFlow newTypingNotificationHandler() {
    return f -> f.log("need's create new Income");

public IntegrationFlow existsTypingNotificationHandler() {
    return f -> f.log("exist income process");

stackTrace cause:

Dispatcher has no subscribers at
~(spring-integration-core-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-integration-core-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-integration-core-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-integration-core-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-integration-core-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-messaging-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-messaging-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-messaging-5.2.6.RELEASE.jar:5.2.6.RELEASE) at
~(spring-messaging-5.2.6.RELEASE.jar:5.2.6.RELEASE) at

WebKit, MAC OS X, iPhone 8, Reset router, security breach?

Why is my iPhone 8 showing up as Mozilla CPU MAC OS X (like gecko) and connected to a Mac? Am I (or my privacy in danger of being compromised or attacked? I’m clueless about this stuff and am hoping I’m just being paranoid. I do not have any active Mac devices.

networking – tplink router: how to route default traffic to another specific IP

I have a tp-link router TD-W8960N 300Mbps Wireless N ADSL2+ Modem Router, which I use to connect to the internet via PPPoE. I have a backup internet connection with its own router, connected to the tp-link one through a LAN cable.

backup router

What I want is changing the routing table when the first PPPoE connection is down, and routing all the incoming traffic on the tp-link to the second router, but I’m not figuring it out how. What I did is connecting via the telnet and do the following:

 > route show
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface     *      UH    0      0        0 ppp2     *        U     0      0        0 br0
default         *              U     0      0        0 ppp2
 > route delete default
Invalid destination IP address
 > route add default
Invalid destination IP address
 > route add
Please at least enter gateway IP or interface

I also tried to add it via the HTTP interface, but it tells me that is an invalid address. Maybe I can’t do it with this specific router and its firmware, but I don’t know. Any help is appreciated.

Ask about NAT (2 router with ISP Router)

I already configure in R2 ip nat inside on sub-int f0/0 and ip nat outside serial and also R3, but for router ISP how do I configure it? I know nat to translate private to public and local can ping public IP.. I try to ping from HQ Vpcs (to public IP can) but to ping others cannot.. same as like Branch PC..

Network Design



Is it safe to use an old mobile phone as modem / router for Wifi?

(Related to A phone as a home 4G modem/router?)

I was wondering if it is plausible and safe to keep an old phone charging all the time with a sim card in order to use it as a modem/router for Wifi.

I thought about this idea in order to have a low-cost Wifi for an alarm system. However, my mother is afraid the mobile phone, if left all day charging and running, might explode and start a fire. Is it possible this would happen?

network – Using outdated ADSL modem with up to date router – Security Concerns

My parents live way out in the middle of nowhere. The only service provider that is not satellite is Century Link, which uses ADSL / phone lines.

They wanted me to set them up, and the service guy was trying to charge them a rental fee per month for the modem; I dug around in their “old technology” bin and found a Westell Model 6100. Now, it doesn’t look like this modem has gotten a software update for A LONG time. Last software update was 2012 from my research.

However, there is a way to put the modem in transparent bridge mode. So, I bought them a Asus AC1300 as a router.

I pass the internet connection along via transparent bridge mode to the router. This requires the router to have the PPOE password, but essentially nothing else sensitive.

The router has updated security settings (Firewall, NAT, etc). I configured it to be fairly strict while still allowing their devices to work properly.

Also note: I changed the default password for both the router and the modem.

Is this putting them at risk from a security standpoint?

I don’t know a lot about networking, but I know out of date devices are bad. That said, it was my understanding that a modem itself does not contain security features; security features are controlled from the router.

One other thing worth mentioning: the modem technically did have a NAT, but once you put it in transparent bridge mode, it removes the nat and passes the public IP straight to the router. The router then uses that as the WAN IP.

networking – How to set Open DNS settings on router Tp-Link ARCHER MR600 with a 4G network?

I’m trying to use OpenDNS to make my network safer. I use a TP-Link ARCHER MR600 which is a 4G modem router (I have a Sim Card inside it, I’m not on Adsl).

I created my account on but when I try to add my network here I’m told that

“you cannot add a network in private IP space”

The IP Address I entered was under the section Internet in the Basic -> Network Map page (see image 1)–>

image 1 - IP Address in the Network Map

I also entered the following command in the command line, by following a thread (what is this for?):

nslookup -type=txt

and I got the following output (I override the possible sensitive info with a custom message between < > ):

    Server:  UnKnown
        primary name server =
        responsible mail addr =
        serial  = <a set of 10 number here>
        refresh = 16384 (4 hours 33 mins 4 secs)
        retry   = 2048 (34 mins 8 secs)
        expire  = 1048576 (12 days 3 hours 16 mins 16 secs)
        default TTL = 2560 (42 mins 40 secs)

Default Server:  UnKnown
Address:  <here there are 4 sequences of numbers separated by comma, like "">

I also tried to change the DNS manually, but I noticed that my router control panel is missing the WAN section under the NETWORK Page, therefore I entered the LAN settings and found Primary DNS and Secondary DNS there, see image 2:

image 2 - DNS in LAN settings

As I can edit them, I substituted the by entering some others indicated in the OpenDNS page, I saved and rebooted. But I still saw the old DNS server in the Network Map section (see image 1), so I reset to the factory settings.

I can’t figure out where I should go in order to set Open DNS:

  1. Should I change DNS manually from the router control panel? In this case, why do I see two different places with different DNS values and which one should I focused on? In any case, I can’t edit the DNS server in the Network Map (see image 1) and I miss the WAN section under “Network”.

  2. Should I change them from the OpenDNS web page? If yes, why I’m told that the IP is private? Did I add the wrong one or it’s a problem related to 4G modem routers or something else?

  3. What the nslookup -type=txt does and what does the output above mean?

man in the middle – MAC address of router changes when i connect to VPN

If I connect to my VPN and then run arp -a the MAC address of my router changes to 00:00:00:00:00:02. Is this normal behaviour? What is the reasoning behind this?

Furthermore a MAC address spoofing is only of real concern when there are more than one devices on the network, and they try to become the MITM correct?