Questions tagged [gateway]
The gateway tag has no summary.
55 questions
5 votes
2 answers
414 views
Correct idea for an IPsec gateway
The purpose of this question is to improve my ability to technically apply the idea of routing specific traffic through an IPsec tunnel before reaching the Internet. So far the best that I can ...
- 51
1 vote
0 answers
67 views
How do I configure SMS to work through email? [closed]
"Alexa how do I send SMS text messages using email? From reference.com you can send a text message from a computer through email using an SMS gateway google voice or several online SMS services.&...
- 111
2 votes
2 answers
244 views
Why does a router need to have an IP assigned to be able to handle Proxy ARP?
This is basically a follow up question of this one. I've had many great answers, but I am failing to understand specifically when people say that you need an IP address assigned to perform Proxy ARP. ...
- 299
8 votes
5 answers
3k views
Why don't routers answer ARP requests for IP addresses they can handle even if they aren't assigned that IP address themselves?
An ARP request is made to know the MAC address of the device that has some specific IP assigned. This way we will be able to know what MAC address we should set to send out IP packet. If a device ...
- 299
0 votes
0 answers
17 views
Double router Setup and uneditable gateway: open port X appears filtered behind port-forwarding [duplicate]
There is a device with an ip address of 172.31.1.122 that is connected to a switch (Scalance 8008) and the switch is connecte to a router (scalance s615 which I cannot configure and has ip of 172.31.1....
- 101
0 votes
0 answers
77 views
Apply NSG to incoming traffic from site-to-site VPN
In azure, when a site-to-site VPN is created, a virtual network gateway-specific subnet is added to be associated to this gateway. Supposing I would like to apply NSG rules to incoming traffic (like I ...
- 101
0 votes
1 answer
100 views
Should a router behind the internet gateway run source NATing or masquerading if the gateway router is masquerading?
Edit: On a multi-router network, should a router (R2) behind the internet gateway (R1) run source NATing or masquerading if the gateway router is masquerading? At this time I can ssh from a host on ...
3 votes
1 answer
515 views
Computers on different subnets can't talk to each other
I'm teaching an introductory computer engineering course in HS and had students in the lab network together the computers they built in the hardware unit - I appreciate the irony of somebody teaching, ...
- 33
1 vote
1 answer
92 views
Do two L4 ports perform better than one port?
I have a micro-service HTTP backend, which used Nginx as gateway. I have two domain names for clients: mydomain1.com and mydomain2.com. client ---> Nginx ---> backend Now, I must decide which ...
- 157
0 votes
1 answer
107 views
How can I ensure that NAT hairpinning goes through the gateway?
When I enable NAT hairpinning, will accessing LAN devices through the public IP go through the public network? After enabling NAT hairpinning and establishing a TCP connection, if the public IP ...
- 1
0 votes
2 answers
178 views
Communicating to a device with a random IP, Subnet Mask and Gateway
I think am looking for a way to reliably communicate with devices connected to the network with "wrong" configurations. Our company sells products that can have their network settings ...
0 votes
1 answer
1k views
Not able to ping device with different subnet on gateway and ip adress
I am trying to ping a device with IP 192.168.0.200, subnet mask 255.255.255.0. It is configured with gateway adress 192.168.1.1. Is it because the gateway subnet, and ip adress subnet is different i ...
- 1
0 votes
2 answers
125 views
Hop 1 of the traceroute to Internet is not the gateway [closed]
I'm assigned to a public IP address from my organization. Here is my default route: IP: 45.150.164.x Gateway: 45.150.164.1 netmask: 255.255.255.0 And here is the result of traceroute 8.8.8.8 from my ...
- 9
1 vote
2 answers
652 views
If there's a NAT-capable gateway between WAN and a switch, why is a switch helpful?
To preface this question, my question is somewhat related to what I'm trying to understand as the difference between layer 3 switches and routers. The main difference between the two is that layer 3 ...
- 121
0 votes
2 answers
297 views
Public IP Configuration which has a private gateway
I bought a public IP from my ISP and they provided me with the following details. WAN IP :10.129.69.157 LAN IP : 196.188.173.32/30 How do I configure this on my side ? The told me to do configure as ...
- 103