3Com Router 3032 Nota di rilascio - Pagina 6

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1: 3C

HAPTER

Routing Protocol

Multicast Protocol

Security

Quality of Service

(QoS)

6000/3000 DSL F

OUTER

AMILY

A router running DHCP client cannot obtain the default gateway address.

Auto configuring the Default gateway is not supported in this release. You

must manually configure this setting.

You cannot access certain web sites from DSL routers. To resolve this, set the

tcp maximum segment size to 1410 on the DSL router's outgoing (WAN)

physical or virtual interface.

IPX is not supported on Frame Relay, HDLC, and X25. IPX is only supported on

Ethernet and PPP.

The DHCP Server fails to remember the DHCP clients after a reboot.

OSPF interface costs are not the same on peer DCE/ DTE Frame Relay Serial

interfaces. If a Frame Relay DTE Serial interface is configured for OSPF, and the

DCE has a different baud rate, the interface must be configured with the

virtualbaudrate

rate as the DCE. After configuration, shut down and restart the interface.

BGP Auto-summary does not work for networks originated using the Network

command. Only imported routes will be auto-summarized.

An undo RIP from interface view removes RIP globally. To remove RIP from

interface view use the

BGP route dampening does not work for IBGP routes. BGP dampening works

for EBGP routes only.

The default value for the IGMP query interval does not match the

recommended value in RFC 2236. Set the query interval to match the query

interval of other routers in your network.

PIM is not supported with IP unnumbered FR interfaces. An IP address must be

assigned to the FR interface.

NAT traversal does not work in IKE Main Mode. IKE Aggressive Mode is

required for NAT traversal to function properly

IPsec tunnel will not get established with Cisco routers when a NAT device is in

the communications path. NAT traversal is not compatible with Cisco routers

Only one security association is used for all traffic flows. IPsec SAs originated

from 3Com routers will be ACL based. To obtain flow-based functionality,

create multiple ACLs with one rule each.

The firewall drops FTP connections when ASPF is configured to filter TCP.

Configure ASPF with TCP and FTP together

IPsec renegotiates SAs too early with heavy traffic. This may lead to traffic

disruptions. Set ISAKMP traffic (destination UDP port 500) as high priority in

QoS to avoid any disruption in communications through the IPsec tunnel

Frame Relay Classes that contain Frame Relay QoS parameters can be applied

to PVC's even if Frame Relay Traffic Shaping is not enabled. Frame Relay Traffic

Shaping must be enabled for PVC queues.

V 2.01

ELEASE

OTES

OFTWARE

command. Configure this command using the same baud

command.

Undo rip work