PPT-Ch 3: 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 Translation from internal hidden IP addresses to valid external Internet addresses. 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.. 5-. 1. Chapter 5. Link Layer and LANs. A note on the use of these ppt slides:. We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a . Chapter 5 – Network Services DNS, DHCP, FTP and SMTP. ICT-BVF8.1- Data Communications and Network Trainer: Dr. Abbes . . 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. 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.. Jun Ho Huh. Research Scientist. Cybersecurity Lab. . Saurabh Verma, . Ali Hamieh, Jun Huh Ho, Siva Raj Rajagopalan, Maciej Korczynski, Nina Fefferman.. . 1. Motivation . money talks!. . 2. It’s becoming very serious!. Networks. Addressing in LANs (ARP). Spanning . tree algorithm. Forwarding in switched Ethernet LANs. Virtual . LANs. Layer 3 switching. Datacenter networks. Roch Guerin. (with adaptations from Jon Turner and John . I’m new to . RPi. and Pi-hole. I’ve been using Pi-hole at home for 2 months;. If I’m not making sense, please interrupt me and ask. If you are derailing the presentation, I’ll tell you and we will move on.. Applications. Updated 2-10-15. History. On ARPANet, host names were mapped to IP addresses in a . hosts.txt . file stored on a single master server. Other machines downloaded copies of . hosts.txt . periodically. Network Layer. 4-. 1. IP Fragmentation & Reassembly. network links have MTU (. max.transfer. size) - largest possible link-. layer . frame.. different link types, different MTUs . large IP datagram divided (“fragmented”) within net. 1. New Delhi. Nov 3. rd. , 2017. Satcom. - Quick Deploy, Reach . 250K terminals in India deployed today . Huge latent demand – Digital India, Rural, SME, SOHO, North-East & LWE Areas, B2C.... 2. Huston. APNIC. February 2014. The E. volution of Evil. It used to be that . they sent . evil packets to . their . chosen . victim. but this exposed the attacker, and limited the damage they could cause.