0
votes
1answer
97 views

Linux router: ping responses going through the wrong interface

I have a Debian server acting as a router for a small network. It has 3 network interfaces, one LAN and 2 WANs (two different ISPs, let's call them A and B, each of them with a public static IP ...
0
votes
0answers
68 views

Ping through a specific device or peer, BGP vyos

I am trying to figure out how I can compare latency to an end-point between two or more BGP peers. I am running VyOS 1.04 (community vyatta) and was using the linux ping command through command line ...
2
votes
2answers
331 views

Unexplained 0.1% packets time out when pinging from router

I'm troubleshooting a customer who requires the ability to send 5000 pings from the router to their remote site over a satellite link with zero timeouts, yet they keep experiencing one to five packets ...
0
votes
1answer
160 views

Branch to Branch VPN through HQ router?

I've just upgraded our router and am working my way through setting it up as the old one was. The new router is a Draytek Vigor 3900. We have a number of sites with IPSec tunnels dialling in to our ...
0
votes
1answer
259 views

ubuntu set up as router lan pc can ping one direction and get shares but other direction can not ping or connect shares

I have ubuntu router questions. you can see tracert can complete on way but not other way. How to make that work? (a better visual layout exists here) ...
8
votes
4answers
5k views

Linux router: ping doesn't route back

I have a Debian box which I'm trying to set up as a router and an Ubuntu box which I'm using as a client. My problem is that when the Ubuntu client tries to ping a server on the Internet, all the ...
0
votes
3answers
171 views

Anomalous behavior of Routers

I am observing anomalous behavior Cisco concerning routers. Scenario 1: Ping from Server A to Cisco Router 1905 - 0.3 ms Ping from Server A through Cisco Router 1905 to Server B - 3.2 ms ...
4
votes
1answer
4k views

Loop redirect when ping my gateway

I have a router with WAN and LAN setup and act as DHCP server/gateway on my local LAN. The IP address is 192.168.1.1. Today, I was hit by an internet failure and I checked the ping and get this ...
4
votes
1answer
422 views

How can I use ping with a large packet size to troubleshoot network issues?

What types of network problems can be identified with ping of a large packet size?
3
votes
2answers
1k views

How network devices affect TTL

When I do a ping, I can see the TTL value for each packet. For every router that I insert in between my computer and the router that connects to the internet, the TTL value goes down by one. However, ...
3
votes
4answers
2k views

Are network and broadcast IPs supposed to respond?

I have a /24 network that is subnetted into a bunch of small chunks. I have recently gone into each router on the network (mostly Cisco) in order to document how this network had been divided. Now ...