name: DHCP
full_form: Dynamic Host Configuration Protocol
context: authentication. If LIPA is activated, SeGW may allocate a different remote (i.e. inner) IP address to the L-GW than the remote (i.e. inner) IP address allocated to the H(e)NB. NOTE: If the SeGW allocates different remote IP addresses to the H(e)NB and the L-GW, then the H(e)NB can retrieve both IP addresses (remote, i.e. inner) via the IKEv2 CFG payload, the H(e)NB can retrieve its own IP address (remote, i.e. inner) via the IKEv2 CFG payload and the L-GW IP address directly via the IPsec tunnel (e.g. using DHCP or OAM), or the H(e)NB can retrieve only the L-GW IP address via the IKEv2 CFG payload and the H(e)NB address directly via the IPsec tunnel (e.g. using DHCP or OAM). In order to avoid any IP address misconfiguration between the entities within the H(e)NB, the IP address allocating entity can provide information about the IP address allocation and the H(e)NB implementation can use the information to differentiate the IP addresses assigned and then configure the H(e)NB and L-GW
description: Dynamic Host Configuration Protocol (DHCP) is a network protocol used for assigning IP addresses and other related configuration parameters to devices on a network. In the context of 3GPP TS 33.320, DHCP is mentioned as a method for retrieving IP addresses within the H(e)NB.
explanation: The classification of DHCP as a Protocol is based on its role in managing IP address allocation and configuration within networks, as described in the provided context from 3GPP TS 33.320.
section_title: 7.4	IPsec Tunnel Establishment
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