Gentoo Archives: gentoo-user

From: "José Pedro Saraiva" <nocive@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Packet loss unknown issue
Date: Wed, 13 Jul 2005 16:17:22
Message-Id: 12a67947050713090772e651af@mail.gmail.com
In Reply to: Re: [gentoo-user] Packet loss unknown issue by Robert Svoboda
1 > your localhost eth0 -> shorewall -> Inet
2 > your localhost eth1 -> shorewall -> your other machines
3 correct :)
4 but shorewall is not responsible for the problem, since I ran all the
5 tests with shorewall stopped and all other network services stopped as
6 well.
7
8 > What address ranges do you use?
9 /etc/conf.d/net
10 iface_eth1="192.168.0.254 netmask 255.255.0.0"
11 iface_eth0="dhcp"
12
13 > What about routing? As root run:
14 > $ route
15 # route
16 Kernel IP routing table
17 Destination Gateway Genmask Flags Metric Ref Use Iface
18 192.168.0.0 * 255.255.0.0 U 0 0 0 eth1
19 loopback * 255.0.0.0 U 0 0 0 lo
20 default 195-23-73-156.n 0.0.0.0 UG 0 0 0 eth0
21
22 > tracepath with eth1 up
23 # tracepath google.com
24 1: 195-23-73-156.net.novis.pt (195.23.73.156) 0.475ms pmtu 1500
25 1: no reply
26 2: no reply
27 3: no reply
28 ...
29
30 > tracepath with eth1 down
31 # tracepath google.com
32 1: 195-23-73-156.net.novis.pt (195.23.73.156) 0.713ms pmtu 1492
33 1: router (192.168.1.254) 0.817ms
34 2: r6613.nr.ip.pt (195.23.0.154) 73.028ms
35 3: 195-23-31-126.nr.ip.pt (195.23.31.126) 72.102ms
36 4: 195-23-31-165.nr.ip.pt (195.23.31.165) 73.625ms
37 5: 194-79-92-82.nr.ip.pt (194.79.92.82) asymm 7 76.323ms
38 6: 194-79-92-21.nr.ip.pt (194.79.92.21) asymm 5 77.538ms
39 7: g1-2-202.core01.lis01.atlas.cogentco.com (130.117.19.189) asymm
40 6 77.528ms
41 8: p2-2.core01.mad05.atlas.cogentco.com (130.117.0.121) asymm 7 87.644ms
42 9: p5-0.core01.bcn01.atlas.cogentco.com (130.117.1.105) asymm 8 98.060ms
43 10: p5-0.core01.par01.atlas.cogentco.com (130.117.1.110) asymm 8 118.240ms
44 11: p5-0.core02.par02.atlas.cogentco.com (130.117.1.229) asymm 10 119.976ms
45 12: p15-0.core01.fra03.atlas.cogentco.com (130.117.0.17) asymm 11 128.401ms
46 13: no reply
47 14: no reply
48 15: no reply
49 16: no reply
50 17: no reply
51 18: no reply
52 19: no reply
53 20: no reply
54 21: no reply
55 22: no reply
56 23: no reply
57 24: no reply
58 25: no reply
59 26: no reply
60 27: no reply
61 28: no reply
62 29: no reply
63 30: no reply
64 31: no reply
65 Too many hops: pmtu 1492
66 Resume: pmtu 1492
67
68 192.168.1.254 is my ADSL modem that is connected to eth0.
69
70 Thanks for the reply Robert
71
72 --
73 gentoo-user@g.o mailing list

Replies

Subject Author
RE: [gentoo-user] Packet loss unknown issue Dave Nebinger <dnebinger@××××.com>
Re: [gentoo-user] Packet loss unknown issue Petr Kocmid <Petr.Kocmid@××××××××××××××××.org>