Hi,
1) I'm fairly inexperienced with routers and have just been brought into working on this problem and am very unclear on a lot of the details. I expect to be gathering information over the next several weeks. To make sure that it remains "fresh" in this forum, is my best bet to continue replying to this thread or should I begin a new thread each time I have new info?
2) My immediate problem is as follows:
At location A, we have a cisco router whose ethernet interface is configured with a 27 bit subnet mask on the 128 network (30 usable hosts).
At location B, we have a cisco router whose ethernet interface is configured with a 28 bit subnet mask on the 176 network (14 usable hosts).
The two locations have internet access and all nodes on both networks are able to connect to all other nodes just fine.
Recently, we required more static ip addresses at location A and were given a new block of addresses from our isp to use with a subnet mask of 28 on the 160 network (giving us an additional 14 usable hosts). The computers on this subnet can access the internet just fine, but are unable to connect to any other nodes at either location A or B.
What might be the most likely problem to cause this condition? Is it possible to have two different subnets with two different subnet masks on the same ethernet segment of one router interface like this? Can I make this work somehow?
3) Before I make any changes to any routers I gather that I ought to backup the IOS image and the config files of the router and to do so I require a TFTP Server. Where can I get the TFTP Server installation files?
Thanks for any clues! Joel
1) I'm fairly inexperienced with routers and have just been brought into working on this problem and am very unclear on a lot of the details. I expect to be gathering information over the next several weeks. To make sure that it remains "fresh" in this forum, is my best bet to continue replying to this thread or should I begin a new thread each time I have new info?
2) My immediate problem is as follows:
At location A, we have a cisco router whose ethernet interface is configured with a 27 bit subnet mask on the 128 network (30 usable hosts).
At location B, we have a cisco router whose ethernet interface is configured with a 28 bit subnet mask on the 176 network (14 usable hosts).
The two locations have internet access and all nodes on both networks are able to connect to all other nodes just fine.
Recently, we required more static ip addresses at location A and were given a new block of addresses from our isp to use with a subnet mask of 28 on the 160 network (giving us an additional 14 usable hosts). The computers on this subnet can access the internet just fine, but are unable to connect to any other nodes at either location A or B.
What might be the most likely problem to cause this condition? Is it possible to have two different subnets with two different subnet masks on the same ethernet segment of one router interface like this? Can I make this work somehow?
3) Before I make any changes to any routers I gather that I ought to backup the IOS image and the config files of the router and to do so I require a TFTP Server. Where can I get the TFTP Server installation files?
Thanks for any clues! Joel
