Hitachi GR2000 Series - Manual (Page 39)

GR2K-GA-0015 vii
Ver. 07-02
7.3.2 Dump file is created .................................................................................................................. 7-9
7.3.3 Core file is created.................................................................................................................. 7-10
7.4 Communication failure in network interface ............................................................................... 7-11
7.4.1 Ethernet and Gigabit Ethernet lines cannot be connected ..................................................... 7-11
7.4.2 WAN line cannot be connected .............................................................................................. 7-12
7.4.2.1 Checkout on the Status................................................................................................. 7-12
7.4.2.2 Confirmation of Statistical Information .......................................................................... 7-18
7.4.2.3 Checkout on Frame Relay PVC (DLCI) Connection ..................................................... 7-19
7.4.3 ATM line cannot be connected ............................................................................................... 7-20
7.4.3.1 Checkout on the Status................................................................................................. 7-20
7.4.3.2 Checkout on ATM VC Connection ................................................................................ 7-21
7.5 Communication Failure in IPv4 Network ..................................................................................... 7-23
7.5.1 Communication cannot be done or communication is disconnected...................................... 7-23
7.5.1.1 Inspection of Log Messages ......................................................................................... 7-24
7.5.1.2 Inspection of Interface Status........................................................................................ 7-25
7.5.1.3 Determination of Failure Range (Echo Test from Own Router) .................................... 7-25
7.5.1.4 Determination of Failure Range (Echo Test from Other End Device) ........................... 7-25
7.5.1.5 Inspection of ARP Information with Neighbor Device ................................................... 7-26
7.5.1.6 Inspection of Unicast Routing Information .................................................................... 7-26
7.5.1.7 Inspection of Multicast Information................................................................................ 7-27
7.5.1.8 Inspection of Filtering/QoS Definition Information......................................................... 7-28
7.5.1.9 Inspection of Null Interface Definition Information......................................................... 7-30
7.5.1.10 Inspection of Policy Routing Definition Information..................................................... 7-30
7.5.1.11 Confirmation of Tag-VLAN Setting Information........................................................... 7-32
7.5.2 IP addresses cannot be assigned using DHCP function ........................................................ 7-32
7.5.2.1 Troubleshooting DHCP/BOOTP Relay Communication Failures.................................. 7-32
7.5.2.2 Troubleshooting Communication Failures in DHCP Server .......................................... 7-39
7.5.2.3 Troubleshooting DHCP Client Communication Failures ............................................... 7-41
7.5.3 Troubleshooting PPPoE Communication Failures ................................................................. 7-44
7.5.3.1 Inspection of Log Message and Interface ..................................................................... 7-45
7.5.3.2 Determination of Failure Range (Echo Test from This Router)..................................... 7-46
7.5.3.3 Determination of Failure Range (Echo Test from Other End Device) ........................... 7-46
7.5.3.4 Confirmation of PPPoE Session Status ........................................................................ 7-46
7.5.3.5 Inspection of Route Information .................................................................................... 7-47
7.5.3.6 Setting Value for mru (MTU) ......................................................................................... 7-48
7.5.3.7 Setting Value of mss Information .................................................................................. 7-48
7.5.4 Troubleshooting NAT Communication Failures ...................................................................... 7-49
7.5.4.1 Inspection of Log Message and Interface ..................................................................... 7-50
7.5.4.2 Confirmation of Failure in NAT/NAPT Conversion ........................................................ 7-50
7.5.4.3 Confirmation of NAT/NAPT Conversion Failure Information (Factor Analysis)............. 7-51
7.5.4.4 Confirmation of Line Used by Configuration Definition NAT/NAPT............................... 7-51
7.5.4.5 Confirmation of Presence of Binding Entry ................................................................... 7-51
7.5.4.6 Confirmation of Configuration Definition NAT/NAPT Rule ............................................ 7-52
7.5.4.7 Confirmation of Relaying Network................................................................................. 7-52
7.5.5 Domain resolution is not possible in DNS relay communication ............................................ 7-52