Response on behalf of another device IP connection

sungho_yoon — Mon, 25 Apr 2022 01:13:08 GMT

I've seen strange behavior on our customer's switch

The IP address of our customer's A site gateway switch is X.X.190.1, and the IP address is Y.Y.180.1 of the remote site B gateway

| PC |------ | A Site X.X.190.1 | -------| A Site VPN | -------------Internet------------| B Site VPN | -----------| B Site Y.Y.180.1 |

However, when our customer connects telnet Y.Y.180.1 to B Site Gateway from a terminal in A Site, A Site equipment responds. No matter how much I search the current config of the A Site device, there is no setting that can respond to Y.Y.180.1.

I tried Debug. Actually, A Site equipment was responding to Y.Y.180.1.

Does anyone know about this phenomenon? i need help

A Site Gateway is ICX7250 and software version are 08.0.90.kT213

topic Response on behalf of another device IP connection in Korea – 한국어

Response on behalf of another device IP connection