cisco ios 백업 및 tftp 설정

1.  cisco 장비 백업 및 ios 전송을 위한 tftp 설정

# 해당 서버는 장비와 udp 통신이 가능해야함

[root@localhost ~]# yum -y install tftp

[root@localhost ~]# yum -y install tftp-server

[root@localhost ~]# vi /etc/xinetd.d/tftp
# default: off
# description: The tftp server serves files using the trivial file transfer \
#       protocol.  The tftp protocol is often used to boot diskless \
#       workstations, download configuration files to network-aware printers, \
#       and to start the installation process for some operating systems.
service tftp
{
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = -s /var/lib/tftpboot
        disable                 = no #yes->no로 변경
        per_source              = 11
        cps                     = 100 2
        flags                   = IPv4
}

[root@localhost ~]# /etc/init.d/xinetd restart

[root@localhost ~]#  netstat -atunp | grep xinet            
tcp        0      0 :::873                      :::*                        LISTEN      30084/xinetd       
udp        0      0 0.0.0.0:69                  0.0.0.0:*                               30084/xinetd   

[root@localhost ~]# chmod 777 /var/lib/tftpboot/

이제 해당 디렉토리에 업그레이드 해야할 IOS 파일을 업로드 한다 .(업로드는 알아서...)

[root@localhost tftpboot]#cd /var/lib/tftpboot/

[root@localhost tftpboot]# ls -alh s72033-adventerprisek9-mz.151-2.SY4.bin  
-rw-r--r-- 1 root root 105M Dec 23 11:12 s72033-adventerprisek9-mz.151-2.SY4.bin

2. ciscoo 장비 bootflash 확인

bootflash 용량을 확인 한다.고 했지만.. ios 용량이 없다...

SK-DDOS-B2-MAIN#sh bootflash:
-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time--------- name
1   .. crashinfo    2882FAC4   C0D78   25   265462 Dec 19 2014 17:21:55 +09:00 crashinfo_20141219-082155

65270408 bytes available (265592 bytes used)

현재 ios 가 있는 disk 0의 용량을 확인후 해당 disk0에 업로드 하기로 한다.

SK-DDOS-B2-MAIN#dir disk0:      
Directory of disk0:/

    1  -rw-    45455628   Jan 1 2000 09:15:50 +09:00  s72033-psv-mz.122-18.SXD1.bin

255979520 bytes total (169144320 bytes free)

SK-DDOS-B2-MAIN#copy disk0: tftp: 

   Address or name of remote host []? 221.139.104.130

   Source filename []?  s72033-adventerprisek9-mz.151-2.SY4.bin
   Destination filename []? s72033-adventerprisek9-mz.151-2.SY4.bin 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 

disk 0에 업로드 된 파일을 확인 한다.

SK-DDOS-B2-MAIN#dir disk0:      
Directory of disk0:/

    1  -rw-    45455628   Jan 1 2000 09:15:50 +09:00  s72033-psv-mz.122-18.SXD1.bin
    2  -rw-   109786700  Dec 24 2014 09:53:38 +09:00  s72033-adventerprisek9-mz.151-2.SY4.bin

255979520 bytes total (169144320 bytes free)

reload전 기존 데이터 및 ios를 백업 받는다.

[root@localhost ~]# cd /var/lib/tftpboot/

[root@localhost tftpboot]# touch s72033-psv-mz.122-18.SXD1.bin         
[root@localhost tftpboot]# chmod 777  s72033-psv-mz.122-18.SXD1.bin

[root@localhost tftpboot]#  touch sk-ddos-b2-main-confg
[root@localhost tftpboot]# chmod 777 sk-ddos-b2-main-confg

SK-DDOS-B2-MAIN#copy running-config tftp:      

Address or name of remote host []? 221.139.104.130
Destination filename [sk-ddos-b2-main-confg]? sk-ddos-b2-main-confg

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

SK-DDOS-B2-MAIN#copy disk0:s72033-psv-mz.122-18.SXD1.bin tftp:
Address or name of remote host []? 221.139.104.130
Destination filename [s72033-psv-mz.122-18.SXD1.bin]?  s72033-psv-mz.122-18.SXD1.bin

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

백업된 파일을 확인 한다.

[root@localhost tftpboot]# ls -al
total 139996
drwxrwxrwx   2 root root      4096 Dec 24 10:11 .
drwxr-xr-x. 29 root root      4096 Dec 24 09:34 ..
-rw-r--r--   1 root root 109786700 Dec 23 11:12 s72033-adventerprisek9-mz.151-2.SY4.bin
-rwxrwxrwx   1 root root  33554432 Dec 24 10:13 s72033-psv-mz.122-18.SXD1.bin
-rwxrwxrwx   1 root root      3676 Dec 24 10:03 sk-ddos-b2-main-confg

3. boot 설정 및 reload

SK-DDOS-B2-MAIN#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SK-DDOS-B2-MAIN(config)#boot system flash disk 0: s72033-adventerprisek9-mz.151-2.SY4.bin

SK-DDOS-B2-MAIN(config)# reload

##reload 후, sh version 을 통해 버전을 확인