An ip keep-alive method and client for user migration
A client and user technology, applied in the field of communication, can solve problems such as affecting users' access to the Internet, unable to re-authenticate packets, and aging table entries.
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Embodiment 1
[0055] This embodiment provides an IP keep-alive method for user migration. The processing flow of an IP keep-alive method for user migration is as follows: Figure 4 as shown,
[0056] Step 11, the dynamic host configuration protocol client DHCP-Client receives and parses the DHCP-ACK message;
[0057] Wherein, the DHCP-ACK message is when the dynamic host configuration protocol DHCP server detects that the lease time before the migration corresponding to the MAC address of the user expires, the dynamic host configuration protocol DHCP server sends the dynamic host configuration protocol client Sent by DHCP-Client;
[0058] The DHCP-ACK message includes: the MAC address of the user, the IP address assigned by the current user and the current lease time;
[0059] Specifically, the DHCP server records the binding entries before migration and after migration for the same MAC address of the user, wherein,
[0060] The binding entry before the migration includes: the IP address...
Embodiment 2
[0099] This embodiment provides an IP keep-alive client for user user migration, and its specific implementation structure is as follows Figure 8 As shown, the specific may include the following:
[0100] Parsing module 81: it is used for receiving and parsing DHCP-ACK messages;
[0101] Wherein, the DHCP-ACK message is sent to the client by the DHCP server when the dynamic host configuration protocol DHCP server detects that the lease time Lease1 before the migration corresponding to the MAC address of the user expires of;
[0102] The DHCP-ACK message includes: the MAC address of the user, the IP address assigned by the current user and the current lease time;
[0103] Judging module 82: used to judge whether the IP address assigned by the current user corresponding to the MAC address of the user is a migrated IP address according to the current lease time;
[0104] Keep-alive module 83: used for judging according to the current lease time that the IP address assigned by...
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