PPT-Networking Services: NAT, DHCP, DNS, Multicasting, NTP

Magda El Zarki Prof of CS Univ of CA Irvine Email elzarkiuciedu http wwwicsuciedu magda Network Address Translation NAT 3 Private Network Private IP network is an IP network that is not directly connected to the Internet. draft-yang-sunset4-weaken-dhcp-00. Tianle. Yang, Lianyuan Li, . Qiongfang. Ma. China Mobile. 2012.11. 1. Problem Description-1. All . networks are . changing from IPv4-Only to Dual-Stack, and even IPv6-Only in the near future. We may turn off some IPv4 services gradually, such as . IS333. Spring . 2015. Role of ARP. Q: What role does ARP play in the TCP/IP protocol stack?. A: See Figure 23.5 on p 389. ARP bridges the Layer 2 / Layer 3 addressing boundary, allowing IP to be agnostic about layer 2’s addressing, and yet still use layer 2 to deliver packets.. This Fall has been bad. Let’s look at two. CVE-2014-6271. AKA “Shellshock”. CVE-2014-3704. AKA “. Drupalgeddon. ”. shellshock. “Remotely exploitable bug in bash”. Run away, everything I knew is wrong. Ettercap. . in Cisco Switched Networks. For fun and Profit. What’s With the Title? (AKA Scope). How the protocols function under normal and malicious circumstances. Ettercap’s. Capabilities for Protocol Abuse. IP Addressing: DHCP Configuration Guide, Cisco IOS XE Release 3E 1 Information About DHCP GleaningOverview of DHCP Gleaning*OHDQLQJKHOSVH[WUDFWORFDWLRQLQIRUPDW . Relates to Lab 7.. Module about dynamic assignment of IP addresses with DHCP.. 2. Dynamic Assignment of IP addresses. Dynamic assignment of IP addresses is desirable for several reasons:. IP addresses are assigned on-demand. 6. th. edition . Jim Kurose, Keith Ross. Addison-Wesley. March 2012. A note on the use of these . ppt. slides:. We. ’. re making these slides freely available to all (faculty, students, readers). They. 0. DNS. DHCP. 管理. 運用. DDNS. Ease of Redundancy. Ease of UI. Backup. Restoration. U. pdates. Ease of :. Focus on DHCP/DNS/Dynamic DNS (D3). Robust Hardware, Ease of UI, High Availability and Secure Software. 0. DNS. DHCP. 管理. 運用. DDNS. Ease of Redundancy. Ease of UI. Backup. Restoration. U. pdates. Ease of :. Focus on DHCP/DNS/Dynamic DNS (D3). Robust Hardware, Ease of UI, High Availability and Secure Software. IS333. Spring . 2016. Role of ARP. Q: What role does ARP play in the TCP/IP protocol stack?. A: See Figure 23.5 on p 389. ARP bridges the Layer 2 / Layer 3 addressing boundary, allowing IP to be agnostic about layer 2’s addressing, and yet still use layer 2 to deliver packets.. Approach . 7. th. edition . Jim Kurose, Keith Ross. Pearson/Addison Wesley. April 2016. Chapter . 6. The Link Layer . and LANs. 6. -. 1. Link Layer and LANs. A note on . these slides. :. The slides used in this class were derived from ones provided by Jim Kurose and Keith Ross, authors of the textbook for the course.. Objectives. Skills/Concepts. Objective Domain Description. Objective Domain. Number. Setting up. common networking services. Understanding. network services. 3.5. Defining. more network services. IOS-XR Zero Touch Provisioning. Introduction. iPXE. iPXE. Demo. Zero Touch Provisioning (ZTP). ZTP Demo. Agenda. Introduction. Traditional . NetOps. Upended by Evolved Needs of SP Customers. * Source: Google. Magda El Zarki. Prof. of CS. Univ. of CA, Irvine. Email: . elzarki@uci.edu. http: . www.ics.uci.edu. /~. magda. Network Address . Translation - NAT. Translation from internal, hidden, IP addresses to valid external Internet addresses..