Users Can Access Some hosts but not Others

[danny_ng]

I have a customer (inexperienced network administrator) has the following stations setup and problems:

Host A = 10.1.1.10 /24

Host B = 10.1.1.6 /16

Host C = 10.1.2.8 /16

All above stations are connected to a Cisco Catalyst 2950 switch.

Host A can ping to host B and host B can ping to host C but host A can not ping to host C (sometimes can)! is it normal ? Why ? and any expert can explain little for me. Thanks in advance.

note: both stations A and C can see each others MAC address from the arp stable.

[r-godden]

Have a look at the following

http://www.cisco.com/warp/public/701/3.html

Regards