I have an application running on a SUN Ultra 170E running Solaris 2.5.1. Local users have good response times but remote users suffer intermittent response times. Snooping a telnet session I came across the following UDP packets in the middle of a telnet conversation and I am certain they are the cause as indicated by the relative timestamps – but what’s causing them? Interestingly they don’t seem to contain any data and have a TTL of 1.
96 52.77655 wallace -> 10.200.61.92 UDP D=33435S=62644 LEN=20
97 36.07697 wallace -> 10.200.61.92 UDP D=33435 S=62649 LEN=20
98 5.02963 wallace -> 10.200.61.92 UDP D=33436 S=62649 LEN=20
99 0.00140 wallace -> 10.200.61.92 UDP D=33437 S=62649 LEN=20
100 0.00143 wallace -> 10.200.61.92 UDP D=33438 S=62649 LEN=20