Cabletron Systems CSX1000, CSX1200 manual Verifying a Semipermanent Connection

USER’S GUIDE

IP ADDRESS POOL

As IP addresses are obtained from DHCP servers, they are placed into the system’s IP Address Pool. To verify the presence of these DHCP-obtained IP addresses, perform the following:

1.Examine the address pool. Type: ip addrpool <return>

2.Look for addresses with an origin of DHCP. This verifies that IP addresses were obtained from a DHCP server, and the Proxy Client is working correctly.

3.If no “DHCP-obtained” addresses are present in the IP Address Pool, refer to Proxy Client Operation in the Problem Diagnosis chapter.

VERIFYING A SEMIPERMANENT CONNECTION

Follow the same procedure outlined in the dial out verification section. If you can successfully use the call device command to call the device assigned to the semipermanent connection, then the connection is working. If not, follow the instructions actions in the dial out verification section.

VERIFYING PROXY ARP IS OPERATIONAL

Use the following graphic to help you in verifying that Proxy ARP is operational. When following the steps below, substitute your addresses for the addresses used in the example.

ISDN

CSX1200

"Site1"

128.168.1.x

CSX1200

"Site2"

128.168.2.x

Host A: 128.168.1.2 Host B: 128.168.2.2

1.Create two Ethernet LANs connected across the WAN with a CyberSWITCH and a second Cabletron platform (for example, another CyberSWITCH product) properly configured. The two Ethernet segments should be subnets of the same IP network. All IP host devices on the Ethernet segments (except the CyberSWITCH and the other Cabletron platform) should be configured with the natural subnet mask so that both Ethernet segments look like one IP network to all the IP host devices on the segments.

2.Try to have an IP host device on one Ethernet segment communicate with an IP host device on the other Ethernet segment. For example, ping from Host A to Host B.

382 CyberSWITCH