Using the 0.0.1.1 and 0.0.1.2 IP Addresses for Logging
If you want to filter IP addresses in a log file, you can pipe the output from grep into uniq. This command returns counts of each address in the log file. Using grep output piped through uniq, we see that two IP addresses appeared 42 times and 16 times. Using uniq filters the log file to only show IP addresses that are unique to the file. These basic building blocks can be used in almost any situation.
0.0.0.0
0.0.0.0 is one of the special IP addresses browse this site in networking, which can be useful for logging. It is used in cases where the address assignment failed or a default route is required. In many cases, the IP address 0.0.0.0 is displayed in the logs, as it indicates valid traffic, and is useful for determining network errors. If you ever find that this address is displayed in the logs, you can try to decipher what the issue is and how you can prevent it in the future.
0.0.1.1
If you’ve ever wondered what an IP address is, then you may have come across the 0.0.1.1 IP address, which is reserved for logging. Basically, this address is four decimal numbers that range from 0 to 255. It’s similar to the way that postal addresses and email addresses work. You can think of an IP address as the same thing as a telephone number, except it’s digital.
0.0.1.2
If you have a cable modem and are attempting to log traffic, you may be using the 0.0.1.2 IP address. This IP address belongs to a special category of IP addresses called ‘IP variant 4’. This address serves the same function as its IPv4 counterpart, but is not widely used. If you’re using a cable modem, you will probably have to use a different IP address.
0.0.1.3
If you are using a router, the Default Gateway setting allows you to log into your network using the 0.0.1.3 IP address. The IP address is useful for managing many device settings, including troubleshooting your network. It is accessible from any internet browser, including Internet Explorer. You can connect to your network wirelessly or via ethernet cable. To access the network settings on your router, open Internet Explorer.
0.0.1.4
If you are running Windows and want to log traffic, you can use the 0.0.1.4 IP address. The following example will show how to use this IP address. First, you should add the command “ping 0.0.1.4:8080” to your firewall’s ruleset. It will then log traffic for this IP address. Secondly, you can add the policy-comment command to your logs.
0.0.1.5
You may have wondered what a 0.0.1.5 IP address is, and you probably did not even know it existed. An IP address is a string of numbers composed of four dots separated by one space. In a network, this string of numbers is commonly referred to as an IP address, and it is often used to signify the default route. Hence, the IP address 0.0.1.5 is used in logging applications.
0.0.1.6
How to use the 0.0.1.6 IP address for logging? Basically, you can use it for logging purposes. The default NAT policy is a no-NAT policy. This means that any traffic with the same IP address on both the source and destination interfaces will be shown as 0.0.0.0. In case the traffic is not NAT-able, you can check its notes section. Besides, 0.0.1.6 is not reserved for logging.
0.0.1.7
You can use the 0.0.1.7 IP address for logging purposes. You can find out the network address by entering it into the web browser address bar. To log, enter the address into a web browser and you’ll be directed to an admin page. You can also find the IP address by typing it in the web browser address bar. To make things even easier, you can also use a proxy server to log the traffic.
0.0.1.8
Using a 0.0.1.8 IP address for logging has a number of advantages. This address is relatively stable in terms of traffic sent and received. Traffic sent to this address is about 160Mbps. The traffic logs show a slight diurnal cycle that is roughly 24 hours, but not a very large cycle when it comes to the total received traffic. Furthermore, the traffic level is consistently reduced at regular intervals, which correspond to the packet capture system’s file cycle.
0.0.18
A subnet mask is a string that defines the range of IP addresses in a subnet. The left-most bits in the first octet are referred to as the high-order bits. The range of these addresses includes 0.0.x.x.x, 0.0.x.x, and 0.0.x.x. The range of these addresses is not exhaustive. Cisco strongly recommends that you use a subnet mask that contains the entire subnet.