For example, the source address in pings (including multicast pings), traceroute, and TFTP packets sent by the router is set to the router ID. In addition, the OSPF router ID for this router is set to the configured router ID.
Note: Configuring a router ID may cause the router's OSPF router ID to change. If this happens, link state advertisements originated by the router before the router ID change persist until they age out - possibly as long as 30 minutes. This may cause an increase in link state database size.
The router ID must match one of the configured IP interface addresses of the router or the configured internal IP address. If not, it is ignored. When ignored, or just not configured, the default IP address of the router (and its OSPF router ID) is set to the internal IP address (if configured) or to the first IP address in the router's configuration.
Enter the address to be used for the router.
Valid Values: any valid IP address
Default Value: none
Select the Submit button.
Enter the interface tags.
Valid Values: an integer in the range of 0 - 65535
Default Value: 0
Select the Submit button.
Enter the time-to-live.
Valid Values: a numeric in the range of 1 - 255
Default Value: 64
Select the Submit button.
Use the Move Access Control option to change the order of records in the global access control list. This command places the first access record identified just after the second access record identified. After you move the records, they are immediately renumbered to reflect the new order.
The router applies the access control records in a list in the order in which they were created. For each packet received on an interface, the router applies each access control record in order until it finds a match. The first record that matches the packet determines whether it will be discarded or forwarded to its destination.
This makes the order of the access control records very important. If they are in the wrong order, certain packets may slip through, or be blocked, in a manner contrary to your intentions.
If for example, that access control record 1 enforces the rule: All packets from network 10.0.0.0 shall be blocked on this interface.
Contrary to this, access control record 2 states: Packets from subnet 10.5.5.0 in network 10.0.0.0, which are destined for address 1.2.3.4, shall be allowed to pass.
Assigned in this order, these records will block all traffic from 10.0.0.0, even though record 2 explicitly allows certain types of packets to pass, and record 1 disables record 2.
To correct this type of problem, you can change the order of the access control records. In the example, you can move record 2 in front of record 1. This way, packets in subnet 10.5.5.0 and destined for address 1.2.3.4 will pass through the interface; the router discards all other packets from 10.0.0.0 as intended.
Use the list command to obtain the following index numbers to enter.
Select the Submit button.
The Update Packet-Filter option assigns access control entries. The router prompts you for the name of the filter that you want to update.
Enter the packet filter name you want to update.
Valid Values: any 16-character name.
You can include dashes (-) and underscores (_) in the name.
Default Value: none
Select the Submit button.
The Add Access-Control option adds access controls to the specified packet filter. The router prompts you for the following information:
This parameter specifies how the interface handles packets matching the access control filter.
Valid Values:
Default Value: Exclusive
This parameter specifies the IP address of the host, subnetwork, or network that is the source of IP packets to be either forwarded or dropped, depending on the type of Access Control entry.
Valid Values
A valid IP address in dotted decimal notation.
Valid Values: 0.0.0.0 to 255.255.255.255
This parameter specifies the address of the host, subnetwork, or network to which IP packets are either forwarded or dropped, depending on the type of Access Control entry.
Valid Values: a valid IP address in dotted decimal notation.
Valid Values: 0.0.0.0 to 255.255.255.255
This protocol number range is compared with the protocol byte in the IP header of each received IP packet. Each IP packet with a protocol value within the specified range will be forwarded. A range of 0 to 255 matches all IP packets.
The commonly used protocol numbers are:
See RFC 1340, "Assigned Numbers" for details on IP protocol numbers.
Valid Values: 0 to 255
Default Value: 0
These valid values and default apply to starting protocol number and ending protocol number.
A packet will match the access control entry only if its IP port number lies within this range.
Valid Values: a port number in the range of 0 - 65535
Address Default Value: 0
These valid values and default apply to starting port number and ending port number.
Some commonly used port numbers are:
Select the Submit button.
Use the Change Access-Control command to change existing access controls using the index number of the access control that you want to change.
Access controls are applied in the order they appear on the access control list.
You can use the List Access Control option to view the access controls configured for each packet filter.
Use the LIST Packet Filter option to view the packet filters and index numbers.
Enter the index number of the packet filter you want to change.
Select the Submit button.
You can change the order of a packet filter's access control records with the Move Access Control option as shown.
Packet filters are applied in the order they appear on the packet filter list.
Select the Submit button.
Use the Delete Access-Control option to delete a record from a packet filter's access-control list.
Enter index of access control to be deleted.
The router responds by displaying the access-control record that you have specified.
Select the Submit button.
Adds a MAC address translation entry. This command is currently supported for IP addresses only.
Valid Values: any valid IP mask
Default Value: none
Valid Values: any valid MAC address
Default Value: 0
Select the Submit button.
If a CIP client is configured to also be a server, then this option will override the client configuration and the client goes to the remote ARP Server to resolve all addresses.
Valid Values: any valid IP mask
Default Value: none
Valid Values: any valid ATM address with the first byte as follows:
The Private Network Specified Access Point (NSAP) Address is the addressing format specified in the UNI versions 3.0 and 3.1. The first byte of the address defines the addressing format, as follows:
Note: This setting corresponds to a client's (IP address/port number) pair.
Default Value: none
Select the Submit button.
You will be prompted for the following information.
Note: Any bandwidth or cell parameter that equals zero will be treated as the line speed of the ATM interface.
Choose IP or IPX.
Valid Values: any valid IP address
When the client is configured to also be a server, both functions share the same ATM address.
Both the CIP client and ARP Server age their ARP entries. Once the timer expires, these ARP entries are deleted. The Refresh Timeout value is the length of time that an ARP entry will be kept before aging out.
If traffic is flowing when an ARP entry gets aged, that traffic will cease for a period until a new ARP entry is created. To avoid an interruption in service, use the automatic refresh option. This option allows the client to transmit either an ARP to the ARP Server or an InATMARP to the target client some time before the ARP entry expires. If the target replies, then the timer of the ARP entry is reset. If the target does not, then the entry is deleted. The ARP Server automatically sends out an InATMARP message before aging an entry in its table.
Valid Values: an integer number of minutes in the range of 0 - 65,535
Default Value: 5 minutes
This parameter specifies whether an ARP Request will be sent to the ARP Server or an InATMARP Request will be sent to the client immediately before an ARP entry is aged out.
Enabling auto-refresh could cause entries to be retained in the cache regardless of their usage. On networks with a large number of nodes, this can lead to an excessive number of entries in the cache, which might adversely affect device performance. However, on networks with a small number of nodes, this option is useful in reducing broadcast ARP traffic.
Valid Values: Yes or No
Default Value: No
If Yes, and if auto-refresh is enabled, then InAtmArp requests will be periodically transmitted to confirm the existence of the remote host. If No, then AtmArp requests will be transmitted to the ARP Server to reconfirm the ARP entry.
Select the ESI index number from the scrolling list. (the list of configured ESIs that you previously configured using the Add ESI network configuration option).
Default Value: Burned In
If you answer yes, an automatically generated value will be used as the selector component of the ATM address.
If you answer no, then you should enter a selector value.
Valid Values: any single octet value that has not been previously used and is within the range defined for the device.
Default Value: none
Valid Values: Yes or No
When yes, Best-Effort VCCs will be rejected if the signaled forward PCR exceeds the Maximum Reserved Bandwidth or the speed of the adapter.
If no, Best-Effort PCRs will be rejected without regard to the signaled Peak Cell Rate.
Enter a Maximum Reserved Bandwidth for incoming VCCs (Kbps)
This value defines the maximum acceptable Sustained Cell Rate (SCR) for an incoming VCC.
Valid Values: Specify an integer in the range of 0 to the line speed of the ATM device.
Default Value: 155000 Kbps
If SCR is not specified on the incoming call, then this parameter defines the maximum acceptable Peak Cell Rate (PCR). Calls received with traffic parameters specifying higher rates will be released. This parameter is applied to both forward and backward Cell Rate parameters.
The constraint imposed by this parameter is applicable to best effort connections (if "validate PCR" is yes) and is compared to the PCR on the incoming call.
Specifies the type of traffic characteristics to be associated with Control VCCs.
Valid Values: Best Effort or Reserved Bandwidth
Default Value: Best Effort
Bandwidth is not reserved for best effort traffic.
Specifies the Peak Cell Rate (PCR) traffic parameter for the Control VCC. This PCR value is used for both the forward and backward PCR values of both best effort and reserved bandwidth VCCs.
Valid Values: an integer Kbps in the range of 0 - line speed of the ATM device
Default Value: If Best Effort VCC, then default is 155000. Otherwise, no default is provided.
Specifies the bandwidth reserved by all VCCs on a given ATM device. (Sustained Cell Rate can be considered to reserved bandwidth.)
Valid Values: an integer Kbps in the range of 0 - control VCC PCR
Default Value: none
This parameter is applicable only when Best Effort Service is not selected for Control VCCs.
Specify Yes or No. This parameter specifies the type of traffic characteristics to be associated with Data VCCs. Bandwidth is not reserved for best effort traffic.
Specifies the Peak Cell Rate (PCR) traffic parameter for the Data VCC. This PCR value is used for both the forward and backward PCR values of both best effort and reserved bandwidth VCCs.
Valid Values: an integer Kbps in the range of 0 - line speed of the ATM device
Default Value: If Best Effort VCC, then default is 155000
Otherwise, no default is provided.
Specifies the Sustained Cell Rate (SCR) traffic parameter for the Data VCC. (Sustained Cell Rate can be considered to reserved bandwidth.) This parameter is applicable only when Best Effort Service is not selected for Data VCCs.
Valid Values: an integer Kbps in the range of 0 - PCR value for Data VCC
Default Value: none
Specifies the Maximum SDU size that will be specified when calls are placed from this client address. It also is used to verify incoming calls. This parameter cannot be set to a value greater than the Maximum SDU size for the physical ATM interface (port).
Valid Values: an integer in the range of 72 - Maximum interface SDU
Default Value: 9188
Valid Values: 0 - 65535
Default Value: 1
Valid Values: 0 - 65535
Default Value: 3
Valid Values: 0 - 65535
Default Value: 3
Valid Values: Any valid selector that has not been previously used used and is within range of this device.
Default Value: 0
Valid Values: an integer in the range of 72 - Maximum interface SDU
Default Value: 9188
Valid Values: an integer in the range of 0 - 65535
Default Value: 15
Select the Submit button.