This time, we will explain the content of vro TFTP. In a LAN environment, if there are Cisco routers and Linux servers. You may need to use the Linux TFTP service to download the Cisco router configuration file startup-config, edit it on the server, and upload it to the vro. There are some special considerations in the implementation.
Software and Hardware used: Redhat Linux 5.2, Cisco 2501 Router
1. Enable the tftp service on the Redhat Linux server and specify the download directory/tmp.
- [jephe@sh89 /etc]$ more inetd.conf | grep tftp
- tftp dgram udp wait root /usr/sbin/tcpd in.tftpd /tmp
Run the command killall-HUP inetd to start it.
2. Set the/tmp permission so that others have the write permission chmod 777/tmp ).
- [jephe@sh89 /]$ ls -l | grep tmp
- drwxrwxrwx 5 root root 2048 Jun 16 07:44 tmp
3. Create an empty file (such as isdn) in the/tmp directory and set the chmod 777/tmp/isdn permission)
- [root@shopu /tmp]# touch isdn
- [root@shopu /tmp]# chmod 777 isdn
- [root@shopu /tmp]# ls -l isdn
- -rwxrwxrwx 1 root root 0 Jun 16 11:24 isdn
4. Enter the vro and download the configuration file.
- Shanghai-ISDN#copy run tftp
- Remote host [192.168.13.2]?
- Name of configuration file to write [shanghai-isdn-confg]? isdn
- Write file isdn on host 192.168.13.2? [confirm]
- Building configuration...
- Writing isdn !! [OK]
Note: You must set the permission correctly and create an empty file before downloading. Otherwise, an error is prompted.