Library items tagged:

Anonymous
Which IP addresses are Janet? If you can identify from routing information the Autonomous System number of the IP address concerned, Janet is AS786 and this is a clear indication that we are responsible. Otherwise, almost all Janet addresses are recorded in the RIPE Regional Internet Registry, with routes or other information linking them to Janet.
Anonymous
Team contact details You can contact Jisc (formerly Janet) CSIRT by email (preferred) or telephone during service hours; or by post.   Email:  irt@jisc.ac.uk Telephone:  0300 999 2340from outside UK: 00 44 1235 822 340
Requesting Modification to a Domain Name under ac.uk/gov.uk/gov.scot/gov.wales/llyw.cymru  
Anonymous
Policy For The urn:mace:ac.uk Namespace Version 1.0, 5th January 2004 Introduction
Anonymous
An example of a correctly completed reverse delegation form for a /24 assignment: --------------------------------------------------------------------------------------------------Janet Reverse Delegation Form Version 1.5 Organisation Name: Janet Technical Contact: Naming AdministratorPhone Number: 0300 300 2212Fax Number: 0300 300 2213 Email: domains@jisc.ac.uk Reverse Domain(s): 83.62.193.in-addr.arpa
Anonymous
Examples of correctly completed forms can be found here. To request the delegation of a reverse zone please complete and return to domains@jisc.ac.uk, the reverse delegation form shown below. --------------------------------------------------------------------------------------------------Janet Reverse Delegation Form Version 1.5 Organisation Name:
Anonymous
What is Subnetting Subnetting is a way of partitioning a network at the IP level by dividing a block of addresses into a number of smaller sets. To understand what is happening, first look at some small numbers rather than a full IP address. Take the set of 'addresses' 100 to 129. If computers used decimal representation, this network of 30 addresses might naturally be split into: 100 - 109 110 - 119 120 - 129 The first two digits represent the subnet number (10,11,12), while the final digit gives the address within the subnet.
Anonymous
The use of private addressing and NAT permits even fairly large organisations to make the best use of a small block of addresses allocated from the globally unique IP address space, and assists in conserving this limited Internet resource.