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I don't understand why your default gateway would be as below instead of fa0/0 ip? Also, fa0/1 seems to have some input errors which may or may not be recent, again check speed and duplex mismatch. Then, the following is redundant in your config.

This is the attitude that keeps my network running, especially when you have administrative control of either end of the connection. Yes auto does work, but there are cases when fixed settings work better. -Viconsul

How are you currently setup?

...hardware single point of failure.

This is not a routing issue, atleast not with the local router.

Also, I have always been an advocate of fixed speed and duplex setting where possible, rather than auto. ...Just a thought. -Viconsul

Hi Speed and duplex mismatch and a show interface of the switchports may reveal additional errors. -Viconsul

Hi I would check the switch port settings connecting the router as well as that of the host you are pinging for any mismatch. HTH -Viconsul

Hi You are in the right direction, but it is more detailed than what you have described and you would need the right IOS version on the router also. -Viconsul

Hi I would ensure the 3560 switch is got a clean config and also ensure the vlan config is cleared before connecting to your network. I would use vtp transparent mode, then create 4 new vlans which are only available on this switch, ensuring no layer 3 interfaces are created for the 4 vlans...

Hi, Nothing compares to the real thing and you could get a Cisco 3550 switch for a reasonable amount on eBay. -Viconsul

Hi Please post a scrubbed off config of the switch. Also the log does not indicated it is a problem with STP. I would start by taking off the port security and see what happens. If all works okay, then I would do a show mac address-table int gi4/0/34 dyn and see what comes up. Rgds -Viconsul

Hi, If you are using a L3 switch and have vlan interfaces configured with ip adressess 10.10.1.242 and 10.10.2.242 for vlans 10 and 20 respectively, then your switch interface connecting to the router no longer needs to remain a trunk port since you are now routing on your switch. Your switch...

You can do a continuous ping from your host and do a show int fa0/1 and check that the your output packet value increases, that will be an indication that the traffice is getting to the router.

Because of this It sends the traffic into a loop

The network 172.16.0.0/24 is directly connected to Fa0/0 so the router is aware of it and so is 10.1.1.0/24. You only need to configure static routes if the network is not directly connected to the router or there are no routing protocols configured.

Hi You need to remove the following; ip route 0.0.0.0 0.0.0.0 FastEthernet0/1 ip route 10.0.0.0 255.255.255.0 FastEthernet0/1 ip route 172.0.0.0 255.0.0.0 FastEthernet0/0 ip route 172.16.0.0 255.255.0.0 FastEthernet0/0 ip route 172.16.0.0 255.255.255.0 FastEthernet0/1 ip route 172.16.0.0...

Hi, 1. Compare the ip configuration and setting of the linux hosts with the working windows hosts. 2. How are they connected to the router? My assumption is that you have a switch connecting them. 3. If line 2 above is correct then check the switch ports and try swapping the hosts around. 4...

Hi, Could you post the output of show ver on the two switches? -Viconsul

You are welcome