Tarry, For a standard ping, or for any trafffic orginated by the router for that matter, the router will use the IP address applied to the interface that sources the packet. If your pinging a device on the other side of a serial interface, the router will use the IP address of the serial interface. If you pinging a device on an ethernet segment, the router will use the IP address of its ethernet interface and so on. You can change this behavior by doing an extended ping and entering a particular address to put in the ICMP packets as the source IP address. In enable mode, just type 'ping' by itself, follow the prompts and anser 'y' when it asks if you want extended options. This feature can be useful for determining devices that may not have correct default routes set. For example, if you can ping a workstation on an ethernet segment connected to the router but it fails when you source the ping from another interface on the router, it probably means the workstation doesn't have the default route set correctly. HTH, Kent On 25 Jan 2001, at 11:40, [EMAIL PROTECTED] wrote: > Hi > > When I ping from a router dose it take the loopback ip address as a source > address or dose it take the Eth/Serial interface? > > Regards, > > Tarry > > -- > Sent through GMX FreeMail - http://www.gmx.net > > _________________________________ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
