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Revision 2
JasMan's avatar
81
JasMan
updated 2020-05-10 11:00:50 +0000

The retransmits are triggered by the DupACKs. The client thinks the server is missing a packet.

The DupACKs are comming from a third system. The first ACKs from 192.168.4.149 are comming from a system with a TTL of 123 (probably 5 hops away). The DupACKs are comming from a system with a TTL of 254 (higher TTL than the first system and probably only 2 hops away).

Loadbalancer? Firewall?

Revision 1
JasMan's avatar
81
JasMan
answered 2020-05-10 10:57:54 +0000

The retransmits are triggered by the DupACKs. The client thinks the server is missing a packet.

The DupACKs are comming from a third system. The first ACKs from 192.168.4.149 are comming from a system with a TTL of 123 (probably 5 (5 hops away). The DupACKs are comming from a system with a TTL of 254 (higher TTL than the first system and probably only 2 (2 hops away).

Loadbalancer? Firewall?