Cabletron Systems Cabletron CyberSWITCH CSX5500 User Manual

Also see for CyberSWITCH 5500: Quick start Manual

Contents

Central Site Remote Access Switch 441VERIFYING ROUTING P ROTOCOLSIP Routing Operational?5. If no packets have been discarded, check to see if the filters are properly configured. Try thefollowing:a. From Manage Mode, issue the ipfilt command. Check the configured packet types, as wellas the configured filters:• For packet types, it is important to verify that the contents of the packet in question areindeed correctly specified (IP Addresses, Protocol, TCP Ports, etc.).• For configured filters, keep in mind that component conditions are executed in the orderin which they appear in the configuration. It is possible that a packet is not beingdiscarded as expected if a previous condition matches that packet with an action offorward.b. Check to see if the filters are properly applied:• For global filters, use Manage Mode’s ipfilt command. Check the Apply GlobalForwarding Filter option.• For filters applied on a per-device basis, use Manage Mode’s device command. Checkto see if filters properly applied.• For network interface filters, check the IP interface information in CFGEDIT (Options,IP Configuration, IP Interface).c. Make configuration changes as necessary.6. If you are still experiencing problems:a. Check the status of the Exception Filter (using Manage Mode, ipfilt command). TheException Filter overrides all other filters. If the Exception Filter is enabled, this could bethe problem.b. With per-device and network interface filters, it is necessary that the packet in questiontruly flows through the desired application point. Try this test:• Disable the per-device and network interface filters.• Apply each filter in question globally.• When desired IP packets are received, it is guaranteed that they will pass through thefilter in question. You can then analyze the effects in isolation. Your findings will behelpful if you need to call Customer Support.7. If the IP filters are properly configured, and the system is still not correctly discarding packets,contact Customer Support.8. When test completed, turn off the trace. Issue the administrative console command:ip filter trace off IP RIP I NITIALIZED ?1. Determine if IP RIP processing has been initialized by viewing the system messages. On theadministration console type:dr 2. Thedr command displays the current system messages. Look for the following IP RIP messageamong the system message:[IP RIP] RIP Protocol Initialization successful