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69

Routers aren't necessary unless your traffic needs to move to a different subnet. When a computer wants to send some IP traffic to a different machine on its subnet, it needs the recipient's MAC address, since IP addresses aren't a thing at a switch's layer (Layer 2 of the OSI model). If it doesn't know the MAC address, it broadcasts an ARP request, saying ...


25

If 2 computers are connected to the same vlan on a switch and share the same subnet mask - the switch should deliver the packet without hitting your firewall or router. You can verify this by running tracert 192.168.0.X (assuming Windows) and you should see a direct route to that system.


17

Almost certainly, the communication path would be A ↔︎ switch ↔︎ B, not going through the firewall and router. Assuming that workstations A and B have IP addresses with the same network and netmask, they should be able to interact with no router involved, because the switch knows how to forward packets. You should be able to verify that there are no ...


4

The ICMP packet and response for the ping are each 32 bytes long, so it seems for an hour-long ping that every byte was taking almost a minute to transmit. This is only explainable by very generous error retry count (your doing?), coupled with very slow router and a painful wait or retries for each and every transmitted byte. The Internet Protocol (IP) ...


3

A reverse proxy can accomplish what you are looking for. See the answer here: http://serverfault.com/questions/469879/two-or-more-services-on-same-port-behind-nat?rq=1 You would configure the reverse proxy to accept requests to the DNS name of your web server for example and the send all other port 80 traffic to the xbox.


2

What is 0.0.0.0 means in destination and gateway column The "destination" column, together with the "genmask", is a mask that the destination address must match: (packet_destination & route_mask) == route_destination. So a route with destination 0.0.0.0 & mask 0.0.0.0 matches everything – it is the default route. In the "gateway" column, ...


1

146.115.72.0 is you network IP. According to the mask 255.255.252.0, CIDR network specification is 146.115.72.0/26, so external IP address 146.115.74.4 is within the range of possible addresses 146.115.72.1 - 146.115.75.254 These are quite typical settings no matter who set them up.


1

According to your tracert result, it's absolutely normal that 10.35.130.10 routed to 192.168.1.1(default GW). As you can see, only 10.0.0.0/26(10.0.0.0 ~ 10.0.0.64) will be routed to 10.35.133.193. There are no route for 10.35.130.10, therefore it's routed to default GW. Just add 10.35.130.10's network entry routed to 10.35.133.193.


1

Whoever set up that hostel's network made the mistake of using the RFC 3927 IPv4 Link-Local subnet (169.254.0.0/16) where it should have used an RFC 1918 private subnet (192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8) as the NAT private subnet. This violates the "1.6 Alternate Use Prohibition" provision of RFC 3927. So it's no surprise that some clients have ...


1

(As you don't mention any operating system, I'll assume that it's all Linux). You'll need to ensure that packet forwarding is enabled on PC1. To do this permanently, add a file in /etc/sysctl.d/ (I called mine local.conf): net.ipv4.ip_forward = 1 You'll also want to set its iptables to do NAT, by editing /etc/iptables.rules (assuming you have an ...


1

You have incorrectly partitioned your routes thru your two routing tables. The following routes, appearing in the main table, belong to the vpn table: 0.0.0.0/1 via 10.197.1.5 dev tun0 128.0.0.0/1 via 10.197.1.5 dev tun0 10.197.1.1 via 10.197.1.5 dev tun0 10.197.1.5 dev tun0 proto kernel scope link src 10.197.1.6 209.95.50.86 via 192.168.1.1 dev ...


1

I use routing tables for this on Linux, is there something similar Windows? Windows has the route command: ROUTE.exe Manipulate network routing tables. Route packets of network traffic from one subnet to another by modifying the route table. Syntax Display route details: ROUTE [-f] PRINT [destination_host] [MASK subnet_mask_value] ...


1

There are some things to keep in mind when using VirtualBox's host-only networking mode (at least V4.3.36) especially when bridging is no option and manual, custom routes are necessary to be configured afterwards: vboxnet0 device node is not automatically available after boot (!)Except when you configure it manually in /etc/network/interfaces which may ...


1

The problem was with TP-link and their failure to display a correct list of firmware as I needed a firmware update. However, TP-link had the firmware linked on .com.au website and .com website. The .com.au was missing a page update listing two more versions when compared to the .com web page. Other than the missing updates, the page design was the same. ...


1

Just ran into a similar problem - SG2210 + 1043ND. Client connected directly to router could ping internet/lan, but the switch was unreachable, also connecting clients to the switch resulted in loss of connection to DHCP server (router). Even setting the switch's admin IP to the same subnet didn't help. After installing the latest firmware everything looks ...



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