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[ScreenOS] TFTP communications fails - TFTP Send rrq error

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Article ID: KB7792 KB Last Updated: 14 Dec 2017Version: 6.0
Summary:
This article describes the issue of the tftp send rrq error message being generated while copying files from tftp server.
Symptoms:
Symptoms and errors:
 
  • The use of TFTP to transfer files to and from the NetScreen device fails. 

  • An attempt was made to upgrade the software and the following error message was generated:
    tftp send rrq error
    TFTP read file failed
Solution:

Solution 1:

When performing any type of TFTP communication from the NetScreen device to the TFTP server, ensure that the interface, to which TFTP communicates, is on the default Virtual Router.  If the interface on the NetScreen device that communicates to the TFTP server is on a custom VR (and not the default VR), TFTP communication will fail. 

For example, Assume that the ethernet1.1 interface is bound to the Internet custom VR. If the TFTP server, which is off ethernet1.1, attempts to upgrade ScreenOS via TFTP, upgrade failure might occur with the following error message:

ns200-> save software from tftp 1.1.1.1 ns200.5.1.0r3a.0 to flash from eth1.1
Load software from TFTP 1.1.1.1 (file: ns200.5.1.0r3a.0) from ethernet1.1.
R
tftp send rrq error
TFTP read file failed

To upgrade software via TFTP, set the VR Internet as the default.  Then, you can go ahead and upgrade via TFTP:

set vr Internet default
save software from tftp 1.1.1.1 ns200.5.1.0r3a.0 to flash
Solution 2:

Check if the interface that the TFTP server is on has an IP address and if it is correct. For example, the following TFTP command was entered, which results in the send rrq error:
 
ns500-> save soft from tftp 192.168.13.186 ns500.5.1.0r3a.0 to flash
Load software from TFTP 192.168.13.186 (file: ns500.5.1.0r3a.0).
R
tftp send rrq error
TFTP read file failed

On the device, type the get interface CLI command to confirm if the IP address assigned to the interfaces:
ns500-> get int

A - Active, I - Inactive, U - Up, D - Down, R - Ready

Interfaces in vsys Root:
Name           IP Address         Zone        MAC            VLAN State VSD Vsys
eth1/1         0.0.0.0/0          Null        0010.db87.cc0a    -   D   -   Root
eth1/2         0.0.0.0/0          V1-Untrust  0010.db87.cc0c    -   U   -   Root
eth2/1         0.0.0.0/0          Null        0010.db87.cc09    -   D   -   Root
eth2/2         0.0.0.0/0          V1-DMZ      0010.db87.cc0b    -   D   -   Root
eth3/1         0.0.0.0/0          Null        0010.db87.cc07    -   U   -   Root
eth3/2         0.0.0.0/0          V1-Trust    0010.db87.cc08    -   D   -   Root
mgt            0.0.0.0/0          MGT         0010.db87.cc00    -   U   -   Root
ha1            0.0.0.0/0          HA          0010.db87.cc05    -   D   -   Root
ha2            0.0.0.0/0          HA          0010.db87.cc06    -   D   -   Root
vlan1          192.168.1.1/24     VLAN        0010.db87.cc0f    1   U   -   Root
In this example, an IP address has not yet been assigned.  Assign an IP address and attempt the TFTP command again:
ns500-> set int mgt ip 192.168.13.180/24

ns500-> save soft from tftp 192.168.13.186 ns500.5.1.0r3a.0 to flash
Load software from TFTP 192.168.13.186 (file: ns500.5.1.0r3a.0).
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Note: At times, copy from TFTP fails. In such cases, save the file in the '.bin' format (for example, 'ns500.5.1.0r3a.0.bin') on the TFTP server and run the 'save soft from tftp 192.168.13.186 ns500.5.1.0r3a.0 .bin to flash' command on the firewall; this might help.
Modification History:
2017-12-07: Article reviewed for accuracy. Minor grammatical changes. Rest of the Article is correct and complete.
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