OK. I've screwed up traceroute somehow. It worked under my previous
router (ipchains, Linux 2.0.x, P75), but I just checked it under my new
router (USR 8054), and it doesn't. From the inside, I get something like
[eben@pc eben]$ /usr/sbin/tracepath yahoo.com
1?: [LOCALHOST] pmtu 1500
1: usr8054 (192.168.1.25) asymm 2 0.518ms
2: no reply
3: no reply
... (repeat until killed)
And from the outside,
[eben@monkey eben]$ /usr/sbin/tracepath aaa.bbb.ccc.ddd
1?: [LOCALHOST] pmtu 1500
1: ssrb-core-msfc-v212.ns.ufl.edu (128.227.212.1) 0.724ms
...
19: ddd-ccc.bbb-aaa.tampabay.rr.com (aaa.bbb.ccc.ddd) asymm 15 82.184ms
20: no reply
21: no reply
... (repeat until killed)
When I tracepath the router, I get this:
[eben@pc networking]$ /usr/sbin/tracepath usr8054
1?: [LOCALHOST] pmtu 1500
1: usr8054 (192.168.1.25) asymm 2 0.675ms
1?: usr8054 (192.168.1.25) asymm 2 reached
Resume: pmtu 1500 hops 1 back 2
The network looks like this:
+--------+
| monkey |
+--------+
|
( internet )
|
+-------------+
| cable modem |
+-------------+
|
+------+ +-----------+
| USR | | laptop |
| 8054 ~ ~ (802.11b) |
+------+ +-----------+
|
- - ----------------- - -
| | | | |
+-+ +-+ +-+ +-+ +-+
|X| | | | | | | | |
+-+ +-+ +-+ +-+ +-+
^
my machine
AFAIK, I need to make sure ICMP "port unreachable" messages get to my
computer. Is this correct? Any idea how to do that? Thanks.
-- -eben ebQenW1@EtaRmpTabYayU.rIr.OcoPm home.tampabay.rr.com/hactar CANCER: The position of Jupiter says that you should spend the rest of the week face down in the mud. Try not to shove a roll of duct tape up your nose when taking your driver's test. -- Weird Al
This archive was generated by hypermail 2.1.3 : Fri Aug 01 2014 - 19:59:42 EDT