Failed To Download Image - Tftp Sendto Network Is Unreachable
Marjorie Comtois
Device ubnt-erx not supported by this image
Supported devices: ubnt,edgerouter-x ubnt-erx ubiquiti,edgerouterx - Image version mismatch: image 1.1, device 1.0. Please wipe config during upgrade (force required) or reinstall. Reason: Config cannot be migrated from swconfig to DSA
Image check failed.
I then unplugged the cable and then plugged it into eth0. I waited a minute. I could also ping myself 192.168.1.15, but could not ping 192.168.1.1; it returned the same message about network is unreachable.
I'm trying to build a minimal kernel where tftp works.
I'm using busybox for initramfs and I'll be running the kernel on an arm64 virtual machine.The command for getting file is tftp -g -r axpu_ldd_kc.ko my_ip_addr(of course my tftp server is working).But the response is :
tftp: sendto: Network is unreachable
So I added some network stuff in the kernel configuration (linux-5.10.0-rc5) but still doesn't work.
I can't figure out what more to add just to make tftp workCould anyone tell me what is missing from the defconfig below? (using e1000 in qemu virtual machine).(As you can see, I added CONFIG_NF_CONNTRACK_TFTP for which the menuconfig says it's TFTP support. And the .config file has CONFIG_NF_NAT_TFTP set to =y. I show the defconfig because .config is too long)
And by the -netdev and -device e1000 options, the user mode network backend is implemented in the qemu that makes us communicate with outside world. The virtual machine has the IP address 10.0.2.15. I've used this user networking mode many times before. (with full kernel default configuration, this tftp runs ok. but I wanted to reduce the kernel Image size from almost 36MB to about 6MB for fast running the test). Please see qemu network modes here :
ADD : (as requested by dirkt) I have DHCP server inside the VM (see above Networking document), my VM has static IP address. and my host too. I believe DHCP client on VM works and DHCP server runs by the qemu program (so qemu program makes the network environment for the VM). I can login to the VM and I can do debug. (but I'm doing other task today). Here is the ip addr command response.
I can ping the tftp server from router. There is no firewall in between router and tftp server. Other network devices in the same subnet can upload / download from tftp server. Only this router can't use the tftp. I tried to install a seperate tftp server and tried but no hope with the freshly installed router. Router running config is attached. Please help me.
Access to TFTP-client (tftp) and TFTP-Server (tftpd) tool/app must be made secure, from (primarily) hackers in internet (and TFTP-Server & Client both must also be kept securely isolated from harmful/ignorant internal users or from hijacked computers, inside your own LAN network). If necessary, create a separate subnet under a 2nd level router, then work / develop / troubleshoot under that separate subnet with network devices which will handle TFTP client/server protocols.
If your computer is also used as a desktop computer for general purpose or for other purpose than build/compile, then make sure TFTP-client & TFTP-server, are both placed behind a firewall (frwl) system or rules1, 2. Firewall rules should be:
For many routers, the recovery process requires you to host the firmware image on a TFTP server on your computer. Then device with the broken firmware then has to be started up in TFTP recovery mode. Some devices then will automatically pull the network-provided firmware file over TFTP network protocol to the OpenWrt and hopefully recover with a successful emergency flash process.
I've been having a lot of issues with UEFI boots lately. I have two VMs that I've been using for testing. One is running DHCP/TFTP (CentOS 7) and the other is a client set to UEFI boot. I have tested this with a Legacy boot and it is able to boot and pull an image. But it does not look like the UEFI client ever takes its DHCP assignment. Both machines are sitting on the same virtual wire (portgroup), so there should be no network problems in the way. I have mirrored another setup that I did previously that is not having the same issue, so I am kind of at a loss. I feel like I am missing something small, so if anyone notices anything, I would appreciate any input! Thanks you!
The network driver seemed to work fine. I hope to copy /live.log to this posting over the net.
Was able to ping the tftp server, but ctrl-c would not stop the pinging and have to reboot. Since i have not figured out how to stop the ping, maybe i can tell it to ping only once instead of indefinitely.
My two phones will download their files from the tftp server running on my laptop and then just sit at the registering screen. I also see a phone with an x next to it next to the line button . I know they are on the network because I can ping them and they receive DHCP addresses.
Send several pings and if it is failing note what message exactly you see, is it a request time out, network unreachable , host unreachable or something else. Check with arp -a if your PC was able to resolve the IP to a MAC address. Delete the arp cache with arp -d and try again. If your PC has multiple active NICs ping by specifying a source IP. Disable all other NICs except the one connected to the controller.
Destination host unreachable means that the controller doesnt answer ARP requests. If you are resetting the controller to factory defaults as explained above, you should have communication with the default IP 192.168.1.1. I think you should contact your local support, request the cim.startup image for MSM720 and perform the TFTP image upload that I mentioned in my previous post.
[Impact]
MAAS commissioning may fail when deploying Xenial images or using grubx64.efi from Xenial due to hardware particularities of some Intel 82599-based network cards. Other network manufacturers may be affected as well. The main failure mode appears to be an infinite re-send of some packets because of an unexpected response from the network hardware.
I am using IPv4 with UEFI. I have tested on a server from another manufacturer with the same network card, ThinkServer previously and dell just now in order to attempt to rule out a firmware issue on the motherboard. I get stuck at the grub prompt and do not see new error messages in pserv.log. I believe those where generated when I was playing with pulling down various files using a tftp client to debug this problem. The issue I see is that from the grub prompt I do not appear to have network connectivity. Here is a what I did on the ThinkServer yesterday.
grub> net_bootp
error: couldn't send network packet.
NOTE: This manual uses the terms switch software and software image to refer to the downloadable software files the switch uses to operate its networking features. Other terms sometimes include Operating System, or OS.
NOTE: If you use auto-tftp to download a new image in a redundant management system, the active management module downloads the new image to both the active and standby modules. Rebooting after the auto-tftp process completes reboots the entire system.
Where two switches in your network belong to the same series, you can download a software image between them by initiating a copy tftp command from the destination switch. The options for this CLI feature include:
A socket error, such as socket error 10051, occurs whenever one computer attempts to connect to another network or server. Error 10051 happens because the other network is unreachable, usually because there is a problem with the router or modem on the computer attempting the connection. This can be as harmless as the router being shut off or a firewall getting in the way. At the serious end of the spectrum, the router may be misconfigured or may have been destroyed and is nonfunctioning.
I am new here to the Meraki forums. We are having issues with Cisco 8811 phones reaching our Call Manager at a remote branch office. More specifically, it is getting a "udp port 69 unreachable" when trying to contact our Voice Gateway that is housed at a District office in Jacksonville. Because of this, the phones cannot download their firmware/configuration from the TFTP/Voice Gateway server. We have a Meraki MX68 VPN appliance at a remote branch office in Ponte Vedra Beach, FL. We also have a MS225-48LP and a MS225-24P switch that are plugged into the MX68 appliance. The MX68 appliance creates a LAN-2-LAN VPN tunnel to our Distrcit office in Jacksonville, where there it terminates with a router then to a MX250 appliance where it enters our "intranet" network. The MX250 appliance is in the Jacksonville office and so is our Voice Gateway that we are using for this VoIP phone system. The Voice Gateway is actually a Cisco 2911 router hosting voice gateway services. On the MX68 appliance at the Ponte Vedra Beach branch office, I have Option 150 set in our DHCP server pointing to the Voice Gateway, but I have also tried pointing that Voice VLAN with Option 150 to our Call Manager as well. I was told that using the Voice Gateway for option 150 is what it should be set at, assuming this is where the TFTP server is hosted on. Moreover, the phones can be pinged from the Voice Gateway in Jacksonville and the MX68 appliance can ping our Call Managers in Tallahassee. The phones are getting IP addresses handed from our local DHCP server that we have running in the MX68 appliance; however, we are not seeing these phones register with our Call Manager. Provided below are some packet capture examples that I have got. Any help or advice would be greatly appreciated.
Hi there
Not sure this is a bug, but might just be misconfiguration of the node. I see the routing information disappears from frr when few thousand l2tp subscribers connect to the node on VyOS 1.4. Ping to BGP neighbors show network unreachable, accel-ppp starts to consume high cpu. And nothing helps but frr restart or system reboot.
What i did on the system is: