| 发明名称 |
VIRTUAL PRIVATE NETWORK DEAD PEER DETECTION |
| 摘要 |
Methods and systems are provided for detecting dead tunnels associated with a VPN. An indicator of a tunnel capability, for example, a DPD vendor ID, is received from a peer through a VPN connection. The tunnel capability is associated with one or more phase II tunnels associated with the VPN. Traffic generated by the peer is detected, and if traffic is detected at a tunnel, the tunnel is presumed to be alive. When no traffic is detected in a tunnel, a DPD packet exchange with the tunnel is initiated. A determination is made, based on the packet exchange, whether the tunnel is alive. |
| 申请公布号 |
US2015195265(A1) |
申请公布日期 |
2015.07.09 |
| 申请号 |
US201414150537 |
申请日期 |
2014.01.08 |
| 申请人 |
SonicWALL, Inc. |
发明人 |
Chen Zhong;Thangavelu Aravind;Xiang Dong;Yang Yanjun |
| 分类号 |
H04L29/06;H04L12/26 |
主分类号 |
H04L29/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for detecting a dead peer, comprising:
receiving an indicator of a tunnel capability from a peer through a Virtual Private Network (VPN) connection, the tunnel capability associated with one or more tunnels associated with the VPN; detecting traffic generated by the peer; initiating a packet exchange with the one or more tunnels when no traffic is detected in the one or more tunnels; and determining, based on the packet exchange, whether the one or more tunnels are alive. |
| 地址 |
San Jose CA US |
