In article <199803090010.QAA26162@starwolf.com> greywolf@starwolf.starwolf.com (Brain fried.  Explanation is in file core.) writes:
>Again, I'm not sure this is the right place (but, then, what is?), but
>I'm seeing curious behaviour on my PPP link -- it appears extremely noisy.
>
>tcpdump shows:
>
>16:06:16.072151 O    8 03 80fd: [|ip]
>16:06:16.088334 O   13 03 80fd: [|ip]
>16:06:16.088885 O   13 03 80fd: [|ip]
>16:06:18.970360 O    8 03 80fd: [|ip]
>16:06:19.084597 O    8 03 80fd: [|ip]
>16:06:19.099961 O   13 03 80fd: [|ip]
>16:06:19.100560 O   13 03 80fd: [|ip]
>16:06:21.980473 O    8 03 80fd: [|ip]
>16:06:22.095319 O    8 03 80fd: [|ip]
>16:06:22.108185 O   13 03 80fd: [|ip]
>16:06:22.108714 O   13 03 80fd: [|ip]
>16:06:24.990361 O    8 03 80fd: [|ip]
>16:06:25.102583 O    8 03 80fd: [|ip]
>16:06:25.115417 O   13 03 80fd: [|ip]
>16:06:25.115951 O   13 03 80fd: [|ip]
>
>three packets of undecipherable origin or type roughly once every three
>seconds.  Is this LCP activity or what?
>

LCP heartbeats? What is your lcp-echo-interval set to? Try setting it to
5 seconds or something.

christos