4 votes 4 votes Use of IPSEC in tunnel mode results in IP packet with same header IP packet with new header IP packet without header No changes in IP packet Computer Networks isro2009 computer-networks ip-packet + – Anuanu asked May 30, 2016 Anuanu 3.3k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 4 votes 4 votes B option. https://technet.microsoft.com/en-us/library/cc737154(v=ws.10).aspx Arjun answered Jun 20, 2016 selected Jun 20, 2016 by Desert_Warrior Arjun comment Share Follow See 1 comment See all 1 1 comment reply Vishal Goyal commented Jun 18, 2017 reply Follow Share what is wrong with option d no change in ip packet (it is true na original packet is ot effected ) 0 votes 0 votes Please log in or register to add a comment.
6 votes 6 votes answer is B IPSEC: protocols to provide security for packets in network layer Transport mode Tunnel mode The IPSec header and trailer are added to the information coming from the transport layer. The IP header is added later. It takes an IP packet, including the header, applies IPSec security methods to the entire packet, and then adds a new IP header. It assures host-to-host (end-to-end) protection. Tunnel mode is normally used between two routers. Does not protect the IP header; Protects the original IP header. sh!va answered Apr 15, 2017 sh!va comment Share Follow See 1 comment See all 1 1 comment reply tryhard commented May 10, 2017 reply Follow Share @shiva u mean in treansport mode we dont need to add new ip header 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes In IPSEC encryption ,Header as well as data will be encrypted each time so we add new header. Paras Nath answered Sep 10, 2016 Paras Nath comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes ans is (b) When IPSec tunnel mode is used, IPSec encrypts the IP header and the payload, whereas transport mode only encrypts the IP payload. Tunnel mode provides the protection of an entire IP packet by treating it as an AH or ESP payload. kvkumar answered Jun 26, 2016 kvkumar comment Share Follow See all 0 reply Please log in or register to add a comment.