Arch Linux

jiewmeng

Member

Registered: 2012-02-09

Posts: 118

Whats the expected time to ping a local home router?

I notied internet is very slow so I traceroute and ping my local router:

$ ping 192.168.1.254
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.
64 bytes from 192.168.1.254: icmp_req=2 ttl=64 time=1971 ms
64 bytes from 192.168.1.254: icmp_req=3 ttl=64 time=1996 ms
64 bytes from 192.168.1.254: icmp_req=4 ttl=64 time=1803 ms
64 bytes from 192.168.1.254: icmp_req=5 ttl=64 time=1583 ms

$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 52 byte packets
 1  gateway.gateway.2wire.net (192.168.1.254)  19.362 ms  9.989 ms  6.033 ms
 2  bb115-66-131-254.singnet.com.sg (115.66.131.254)  17.091 ms  33.238 ms  12.193 ms
 3  202.166.126.66 (202.166.126.66)  22.506 ms  7.483 ms  19.349 ms
 4  ae2-10.shiraz.singnet.com.sg (202.166.126.65)  1390.232 ms  1140.845 ms  1280.849 ms
...

Wonder if this is the normal result? 192.168.1.254 is the local router, thats very slow? What might be the cause? I am on Power Line networking, most times its OK enough

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.:B:.

Forum Fellow

Registered: 2006-11-26

Posts: 5,819

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Re: Whats the expected time to ping a local home router?

Unless your connection is completely saturated, it's not.

This is on my LAN.

Server (wired):

$ ping -c 5 zeus
PING zeus.borromini.net (10.0.0.1) 56(84) bytes of data.
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=1 ttl=64 time=0.216 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=2 ttl=64 time=0.275 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=3 ttl=64 time=0.244 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=4 ttl=64 time=0.226 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=5 ttl=64 time=0.226 ms

--- zeus.borromini.net ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3996ms
rtt min/avg/max/mdev = 0.216/0.237/0.275/0.025 ms

Laptop (wireless):

$ ping -c 5 zeus
PING zeus.borromini.net (10.0.0.1) 56(84) bytes of data.
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=1 ttl=64 time=2.46 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=2 ttl=64 time=2.48 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=3 ttl=64 time=2.53 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=4 ttl=64 time=2.52 ms
64 bytes from zeus.borromini.net (10.0.0.1): icmp_req=5 ttl=64 time=2.48 ms

--- zeus.borromini.net ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4006ms
rtt min/avg/max/mdev = 2.465/2.498/2.530/0.040 ms

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fukawi2

Ex-Administratorino

From: .vic.au

Registered: 2007-09-28

Posts: 6,226

Website

Re: Whats the expected time to ping a local home router?

That ping is not normal... However the traceroute appears better. (Although not great)

I noticed seq 1 is missing from the ping output; I'm guessing that means there is packet loss as well as the slow round times?

Last edited by fukawi2 (2012-05-02 23:21:22)

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jiewmeng

Member

Registered: 2012-02-09

Posts: 118

Re: Whats the expected time to ping a local home router?

Hmm ... heres one I just did ...

$ ping 192.168.1.254
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.
64 bytes from 192.168.1.254: icmp_req=1 ttl=64 time=3.70 ms
64 bytes from 192.168.1.254: icmp_req=2 ttl=64 time=5.06 ms
64 bytes from 192.168.1.254: icmp_req=3 ttl=64 time=13.1 ms
64 bytes from 192.168.1.254: icmp_req=4 ttl=64 time=94.3 ms
64 bytes from 192.168.1.254: icmp_req=5 ttl=64 time=3.61 ms
64 bytes from 192.168.1.254: icmp_req=6 ttl=64 time=15.0 ms
64 bytes from 192.168.1.254: icmp_req=7 ttl=64 time=7.56 ms
64 bytes from 192.168.1.254: icmp_req=8 ttl=64 time=4.80 ms

Better, but still slow, how might I debug this? I think its probably my power line networking?

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Gcool

Member

Registered: 2011-08-16

Posts: 1,456

Re: Whats the expected time to ping a local home router?

If there's a possibility to hook up your computer directly on to the router (bypassing the powerline) and run the same test; then you'll have some sort of idea of where the issue might be.

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ratcheer

Member

Registered: 2011-10-09

Posts: 912

Re: Whats the expected time to ping a local home router?

I am using power line networking, and I just pinged my router and got an average of 2.588 ms. My powerline adapters are just cheap little Actiontec 85 mbps models.

So, I don't think powerline is your problem, either.

Tim

mr.MikyMaus

Member

From: disabled

Registered: 2006-03-31

Posts: 285

Re: Whats the expected time to ping a local home router?

It's really funny that ping and traceroute give different results - traceroute in fact only pings with mangled TTL.

The only difference, besides TTL, is that traceroute uses 52bytes packages while ping uses 56 - perhaps try to force ping to simulate traceroute by pinging with TTL 1 and only 52 bytes package and see what happens.

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Forum Fellow

Registered: 2006-11-26

Posts: 5,819

Website

Re: Whats the expected time to ping a local home router?

It doesn't necessarily have to be the Powerline adapters - if the wiring in your house is old and/or not of the best quality, that might affect performance as well. Same if there are different circuits involved.

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