GNS3 Strict routing of ICMP

Routing configuration:

The ICMP record route grabs the IP address of the interface and can fetch up to 9. Options in the IP protocol header are 40 bytes

R1:

Conf t

int f0/0

No shutdown

IP Add 192.168.1.1 255.255.255.0

No IP routing

End

R2 f0/0:

Conf t

int f0/0

No shutdown

IP Add 192.168.1.254 255.255.255.0

End

R2 f1/0:

Conf t

int f0/0

No shutdown

IP Add 192.168.2.254 255.255.255.0

End

R3:

Conf t

int f0/0

No shutdown

IP Add 192.168.2.1 255.255.255.0

No IP routing

End

First R1 Ping R3, to ensure the smooth line. Then enter ping + ENTER to enter the following interface:

R2 The outbound IP address of the route input, press ENTER:

Strict routing must follow the specified route, with the following packet capture:

Returns the incoming IP address of the R2

GNS3 Strict routing of ICMP