TFTP very Fustrating!! need help

cms819

Hello,

I am trying to do some hands on file transfers from my router to my tftp server. I have a crossover cable plugged in from my router to my personal desktop. I downloaded tftp32. I am able to ping the router from my desktop, but i am not able to ping my desktop from my router... I have the ip address for the router ethernet port to 192.168.2.1/24 and for my cpu I have statically assigned the ip address of 192.168.2.3/24 with a default gateway of 192.168.2.1.. I can not get tftp to transfer files I keep getting a timed out error. I have disabled my firewall on my computer and antivirus.

please help me.

DCD

Is your firewall on?

cms819

DCD wrote: »

Is your firewall on?

No I had disabled my firewall and my antivirus.

Deathmage

Ping your local ip at 127.0.0.1

And

Manually Set your speed duplex to 100 and full duplex on the router and then manually set it to full and 100 on the PC's nic.

Also make sure the interface that has the connection isn't shutdown. An easy test on the router is to do a 'show ip inter br', make sure the interface is up/up.

Let us know if this doesn't work..

cms819

I had a little bit of luck.. for about 5 minutes.. I deleted my antivirus and i was able to transfer files from router to my tftp server..(Wonder why it didn't work when I had it turned off). But then I ran into another problem... I deleted my NVRAM so I could copy my saved starting config file from my tftp server to the router. Now I can't ping my pc again from my router. I am able to ping my router from my pc however.. I have the Ip addresses in the same subnet with the correct default gateway. Speed and duplexes match from my nic and my router and The port is not shut down. Is there something I am doing wrong or something I am missing. This is really confusing me.

cms819

I spent about three hours with my friend thewiz.

FA0/1
Hardware is Gt96k FE, address is 001d.a15c.1101 (bia 001d.a15c.1101)
Internet address is 192.168.2.1/24
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX

Ip int brief is showing up and up.

My desktop PC ip address is 192.168.2.3 255.255.255.0
default-gateway is 192.168.2.
Firewall has been turned off. Antivirus has been deleted

I am able to ping my router from my PC!
I am not able to ping my pc from my ROUTER!

rjon17469

Sounds like a firewall or other filtering service on your PC still. To test, clear the ARP cache on the router, then try pinging, and see if an ARP entry is now populated for the PC's address. This is to test the router's ability to get an ARP entry via request/reply rather than learning it from inbound unsolicited packets.

Deathmage

make sure vlan 1 on the router isn't shutdown.

I just recreated the exact setup in packet tracer and its working fine.

I just setup the network to a 192.168.1.1/29 with the subnet on each side and manually set the router to full duplex and speed 100 and did the same on the laptop.

set the loopback to say 192.168.1.1 255.255.255.255 or whatever you like on the router and do a no shutdown and see if you can ping the loopback to make sure you can ping inside of the router. Also make sure you can ping the IP address of the interface with the crossover internally on the router.

Here's what I just did maybe you'll see something you overlooked:




TFTP-Lab-Router# TFTP-Lab-Router#
TFTP-Lab-Router#show ru
TFTP-Lab-Router#show running-config
Building configuration...


Current configuration : 828 bytes
!
version 12.4
no service timestamps log datetime msec

no service timestamps debug datetime msec
service password-encryption
!
hostname TFTP-Lab-Router
!
!
!
enable secret 5 $1$mERr$hx5rVt7rPNoS4wqbXKX7m0
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
username trevor privilege 15 password 7 0822455D0A16
!
!
!
!

!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.248
duplex full
speed 100
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Vlan1
no ip address
!
ip classless
!
ip flow-export version 9
!
!
!
!

!
!
!
line con 0
exec-timeout 0 0
logging synchronous
login local
!
line aux 0
!
line vty 0 4
exec-timeout 0 0
logging synchronous

login local
line vty 5 15
exec-timeout 0 0
logging synchronous
login local
!

!
!
end




TFTP-Lab-Router#
TFTP-Lab-Router#

TFTP-Lab-Router#

TFTP-Lab-Router# TFTP-Lab-Router#show ip inter br
Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 192.168.1.1 YES manual up up

FastEthernet0/1 unassigned YES unset administratively down down

Vlan1 unassigned YES unset up down
TFTP-Lab-Router#ping 192.168.1.1


Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/6/15 ms


TFTP-Lab-Router#ping 192.168.1.2


Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms


TFTP-Lab-Router#


If all else fails on the laptop/PC try these command to reset your winsock stack, to do this open up an elevated command prompt and do these commands:

1) netsh winsock reset
2 ) netsh int ipv4 reset reset.log
3) then for shits and giggles, ipconfig /flushdns
4) and finally ipconfig /registerdns
5) lastly really make sure your windows firewall is off and disable the Windows Firewall service by setting it to disabled
6) reboot

....

7) when you come back up after reboot sometimes your default gateway will need to be re-added...

Also can't stress this enough make sure duplex/speed are manually set on the PC's nic card, also make sure auto-MDIX is turned off.

CiscoWayne

This may sound basic, but have you tried turning your Wi-Fi adaptor off as well?

Had a similar problem myself a few weeks ago.

DCD

Do a ping from the router to the PC then do a "Show Arp". Please post the output.

Deathmage

The more and more I think about it, it's got to be a cable, vlan issue or auto-mdix.

cms819

I got it to work after trying again this morning.. I had not changed anything.. I think it had something to do with my previous antivirus.. Still confused but it works lol.

Thanks for your guy's help

Deathmage

cms819 wrote: »

I got it to work after trying again this morning.. I had not changed anything.. I think it had something to do with my previous antivirus.. Still confused but it works lol.

Thanks for your guy's help

Did your previous anti-virus have a built-in firewall?

cms819

yes it did.

mikeybinec

I've never had an issue with AV blocking tftp transfers. I use Solarwinds tftp server for backing up IOSs

Deathmage

mikeybinec wrote: »

I've never had an issue with AV blocking tftp transfers. I use Solarwinds tftp server for backing up IOSs

+1 for solarwinds