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CORRECTION OF AN ICMP PACKET LINKED TO AN IP PACKET HAVING BEEN TREATED BY AN ALG
CORRECTION OF AN ICMP PACKET LINKED TO AN IP PACKET HAVING BEEN TREATED BY AN ALG
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机译:校正与ALG处理的IP数据包链接的ICMP数据包
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摘要
A method for correcting a packet of an Internet control message protocol (ICMP), during routing of a packet between a private and a public network having been processed by an application level gateway, includes reading a packet of an ICMP including a “need to fragment” message and the value of a maximum transmission unit defining the maximum size of data packets handled in a communication protocol used by a routing, calculating a value of a processing size by comparing a size of a packet not processed by the integrator of the application level gateway and a size of the same packet processed by the integrator, modifying the packet of an ICMP by overwriting the value of the maximum transmission unit with an actual maximum packet size value which depends on the value of the processing size, sending, to a transmitter having sent the non-processed packet, the packet of an ICMP.
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