tailieunhanh - Nortel Guide to VPN Routing for Security and VoIP phần 10

Khi một nút nhận ra một địa chỉ IP trong một phát sóng ARP, nó sẽ đáp ứng với các nút có nguồn gốc với địa chỉ MAC phù hợp với địa chỉ IP. Mục ARP được lưu trữ trong một bộ nhớ cache, được gọi là bảng ARP. ARP là hạn chế các nút trong mạng có hỗ trợ phát sóng | 658 Appendix B which means you ll need to terminate the session and restart a new one. A sample output of the more command is as follows CES more reformat Command The reformat command is used to reformat the floppy diskette to be used in the creation of a recovery diskette. Although the command may be executed remotely local interaction is necessary because you need to place and remove the floppy diskette on the Nortel VPN Router. A sample output of the reformat command is as follows CES reformat diskette Reformats the diskette CES reformat diskette full Formats the floppy disk in full mode. quick Formats the floppy disk in quick mode. CES reformat diskette full cr reload Command The reload command gives a remote administrator the capability to restart the Nortel VPN Router. A variety of options are available with this command as shown in the following sample output CES reload At Reload at a specific time date boot-drive Enables reboot drive boot-normal Boot in normal mode boot-safe Boot in safe mode cancel Cancels pending reload config-file disable-after-restart Enables boot configuration file Prevents remote logins after shutdown disable-logins in Prevents new remote logins before shutdown Reload after a time interval LINE Reason for reload no-sessions Reload after all users log off power-off Power down after shutdown restart Restart after shutdown cr Command Line Interpreter Commands 659 Because this command will perform a cold restart of the unit it will cause all user and Branch Office Tunnels to drop. This command must be used carefully and with proper notification to all those who would be affected when exercising this command. rename Command The rename command is used to rename a file or a directory. The assumption is that the path will be specified or that the user will be one directory level above a directory to be named or within a directory where a file that is to be renamed is located. A sample of the rename command is as follows