[j-nsp] JUNOS ping utility and fragmented ICMP "echo request" probes

[sthaug at nethelp.no]

> Cisco891 has IPv4 address 10.10.10.2 and Juniper M10i has IPv4 address
> 10.10.10.1. If I execute "ping 10.10.10.2 source 10.10.10.1 size 1473
> count 1"(or larger packet size) in M10i and tcpdump traffic, I can see
> following:

Ping size 1500 on the Cisco side = ping size 1472 on the Juniper side.

If you ping from the Juniper with size 1473, you should expect the
packet to be fragmented.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no