barak-online.net icmp performance vs. traceroute/tcptraceroute, ssh, ipsec

Tue May 8 01:15:29 UTC 2007

After all the discussion, the difference of last hop of the trace
(from original email)
> 15  89.1.148.230.dynamic.barak-online.net (89.1.148.230)  251.923 ms
256.817 ms *
And the ping result
> 64 bytes from 89.1.148.230: icmp_seq=6 ttl=240 time=190 ms
is still quite interesting.  I assumed the last hop is the cisco 871
(IP=89.1.148.230).
It will be good to know what cause the difference if you have full
controll of the 871.

Min

On 5/7/07, Lincoln Dale <ltd at interlink.com.au> wrote:
>
> > Lower than 1500 mtu always requires some kind of hack in real life.
> >
> > That would be the adjust-mss which is the hack-of-choice
>
> note that using 'adjust-mss' only adjusts the MSS for TCP.
> it won't do much good for already-encapsulated IPSec traffic with protocol 47
> or tunneled over UDP...
>
>
>
> cheers,
>
> lincoln.
>
>