LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices

Reply
 
Search this Thread
Old 11-03-2006, 05:21 PM   #1
kjan.ondrace
LQ Newbie
 
Registered: Oct 2006
Distribution: FC6
Posts: 11

Rep: Reputation: 0
Talking ping works, web doesnt


Hello, I am with trouble with network. I am connected through LAN/eth0 to the internet. IP address is obtained from dhcp without any trouble. Ping works fine. But the internet doesnt.

For ex.:

if I start firefox after pinging google, page google is loaded properly.

When I jump into the different page(with different ip) it stops working.

So I have to ping page I want to visit first then run the firefox to explore the page.

I do not understand it.


I tried to erase ip tables and configure it again.
Using eth1(wifi) was without any success as well.

I would say that iptables drop almost all the packets expect of some ping ones. But after pinging ... it works then.

Can DNS work only with ping ?

(it is not only firefox's problem, other applications have the same behaviour)

Iam using Fedora core 6.
 
Old 11-03-2006, 05:39 PM   #2
Fle><
Member
 
Registered: Dec 2003
Location: Vienna | Austria
Distribution: Gentoo
Posts: 52

Rep: Reputation: 15
strange ^^
but with this little information we can only guess what your problem is. so please post the following
  • ifconfig
  • iptables -Ln
  • cat /etc/hosts
  • cat /etc/resolv.conf
  • your network topology
  • is there another computer in your network with a working internet connection?
  • connection settings in ff (if not the default one)
then we can start helping.
 
Old 11-04-2006, 03:51 AM   #3
amitsharma_26
Member
 
Registered: Sep 2005
Location: New delhi
Distribution: RHEL 3.0/4.0
Posts: 777

Rep: Reputation: 31
It seems that this could possibly be a cause of some iptables rule causing only related TCP packets to go OUT. And when you ping a site(domain name), it do the name conversion with UDP packets(which are not being blocked) & then send icmp echo & hence creating a related packet stream(after getting icmp replies) to pass on to that iptables rule.

However you could get the solution of this problem by yourself with any packet logger/sniffer. You got to look about what are the packets being passed & blocked & how are they routed.
 
Old 11-04-2006, 04:32 AM   #4
kjan.ondrace
LQ Newbie
 
Registered: Oct 2006
Distribution: FC6
Posts: 11

Original Poster
Rep: Reputation: 0
details

The topology of my network is:

my laptop(in trouble) and another computer(which works fine) are connected to ADSL router via ethernet.


lap====\\
comp==ADSLROUTER === (internet)


I use default ff settings.


Here are some print-outs

[root@janon ~]# lsmod | grep 'ip'
iptable_mangle 7105 0
ipt_LOG 10561 0
ipt_MASQUERADE 7873 0
ip_nat 22253 1 ipt_MASQUERADE
ipt_TOS 6465 0
ip_conntrack_irc 10929 0
ip_conntrack_ftp 12081 0
ip_conntrack_netbios_ns 7105 0
ipt_REJECT 9665 1
ip_conntrack 56993 6 ipt_MASQUERADE,ip_nat,ip_conntrack_irc,ip_conntrack_ftp,ip_conntrack_netbios_ns,xt_state
nfnetlink 11353 2 ip_nat,ip_conntrack
iptable_filter 7233 1
ip_tables 17669 2 iptable_mangle,iptable_filter
ip6t_REJECT 9537 1
ip6table_filter 7105 1
ip6_tables 18821 1 ip6table_filter
x_tables 18501 9 ipt_LOG,ipt_MASQUERADE,ipt_TOS,ipt_REJECT,xt_state,ip_tables,ip6t_REJECT,xt_tcpudp,ip6_tables
dm_multipath 22601 0
ipv6 267489 15 ip6t_REJECT
ipw2200 148840 0
ieee80211 50028 1 ipw2200
dm_mod 61273 13 dm_multipath,dm_snapshot,dm_zero,dm_mirror


[root@janon ~]# dmesg | grep 'eth0'
eth0: Identified chip type is 'RTL8169s/8110s'.
eth0: RTL8169 at 0xf88cec00, 00:03:0d:39:c9:05, IRQ 185
r8169: eth0: link up
eth0: no IPv6 routers present
[root@janon ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:03:0D:39:C9:05
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::203:dff:fe39:c905/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:144 errors:0 dropped:0 overruns:0 frame:0
TX packets:142 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16715 (16.3 KiB) TX bytes:13933 (13.6 KiB)
Interrupt:185 Base address:0xec00

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2507 errors:0 dropped:0 overruns:0 frame:0
TX packets:2507 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9175340 (8.7 MiB) TX bytes:9175340 (8.7 MiB)


[root@janon ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere

Chain FORWARD (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Chain RH-Firewall-1-INPUT (2 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere icmp any
ACCEPT esp -- anywhere anywhere
ACCEPT ah -- anywhere anywhere
ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns
ACCEPT udp -- anywhere anywhere udp dpt:ipp
ACCEPT tcp -- anywhere anywhere tcp dpt:ipp
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ftp
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:https
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:search-agent
ACCEPT udp -- anywhere anywhere state NEW udp dpt:search-agent
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited


[root@janon ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
::1 janon janon
[root@janon ~]# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
nameserver 192.168.1.1

Thank You guys for your effort.
 
Old 11-04-2006, 08:29 AM   #5
Fle><
Member
 
Registered: Dec 2003
Location: Vienna | Austria
Distribution: Gentoo
Posts: 52

Rep: Reputation: 15
Have you ever tried to stop iptables and connect to the internet?

I think you should add some entries to your /etc/hosts (but these entries don't seem to be problem related right now):
Code:
127.0.0.1       localhost       laptop2
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
 
Old 11-04-2006, 09:16 AM   #6
amitsharma_26
Member
 
Registered: Sep 2005
Location: New delhi
Distribution: RHEL 3.0/4.0
Posts: 777

Rep: Reputation: 31
It doesnt look anything wrong in that firewall.

Hey kjan.ondrace; Can you log (all) the packets with any packet logger/sniffer for
1. Browsing google.com. (prior to pinging google)
2. Pinging google.com & then browsing.

& post here ?

& i hope you are having your adsl-router's ip as your gateway only.
 
Old 11-04-2006, 05:31 PM   #7
kjan.ondrace
LQ Newbie
 
Registered: Oct 2006
Distribution: FC6
Posts: 11

Original Poster
Rep: Reputation: 0
And how can I check what gateway I am using ?

Because I used my laptop in different network. When I changed it to current network it stopped working.

Is there any file where ip configuration is set ?

For ex. my gateway, ip address, net mask etc.

Is it possible to delete previous network settings ?

Is in fedora any default utility to log packets ?

It would be difficult to install something to that machine.

I tried to use netstat, but printouts were very strange
 
Old 11-05-2006, 05:53 AM   #8
amitsharma_26
Member
 
Registered: Sep 2005
Location: New delhi
Distribution: RHEL 3.0/4.0
Posts: 777

Rep: Reputation: 31
And how can I check what gateway I am using ?
ip rou ls | grep default


Is there any file where ip configuration is set ?
/etc/sysconfig/network-scripts/ifcfg-eth0 for eth0
& /etc/sysconfig/network-scripts/ifcfg-eth1 for eth1 & respectively for other devices.


Is in fedora any default utility to log packets
?
tcpdump or ethereal
 
Old 11-05-2006, 10:11 AM   #9
kjan.ondrace
LQ Newbie
 
Registered: Oct 2006
Distribution: FC6
Posts: 11

Original Poster
Rep: Reputation: 0
this is output of tcpdump, I am not much wise of it.

these packets should be a mixture of firefox effort and "ping www.google.com"

17:01:14.619492 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 6, length 64
17:01:15.569609 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 7, length 64
17:01:15.619113 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 7, length 64
17:01:15.662632 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 51) www.google.com.domain > 192.168.1.4.32804: [udp sum ok] 19377 ServFail- q: AAAA? janon. 0/0/0 (23)
17:01:15.662695 IP (tos 0xc0, ttl 64, id 2872, offset 0, flags [none], proto: ICMP (1), length: 79) 192.168.1.4 > www.google.com: ICMP 192.168.1.4 udp port 32804 unreachable, length 59
IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 51) www.google.com.domain > 192.168.1.4.32804: [udp sum ok] 19377 ServFail- q: AAAA? janon. 0/0/0 (23)
17:01:16.569689 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 8, length 64
17:01:16.619980 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 8, length 64
17:01:17.569771 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 9, length 64
17:01:17.620356 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 9, length 64
17:01:18.569850 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 10, length 64
17:01:18.620471 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 10, length 64
17:01:18.653886 IP (tos 0x0, ttl 64, id 61982, offset 0, flags [DF], proto: UDP (17), length: 51) 192.168.1.4.32805 > www.google.com.domain: [udp sum ok] 2885+ A? janon. (23)
17:01:19.569930 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 11, length 64
17:01:19.620096 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 11, length 64
17:01:20.570014 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 12, length 64
17:01:20.619969 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 12, length 64
17:01:21.570088 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 13, length 64
17:01:21.619845 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 13, length 64
17:01:22.570168 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 14, length 64
17:01:22.620461 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 14, length 64
17:01:23.570249 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 15, length 64
17:01:23.621589 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 15, length 64
17:01:23.659466 IP (tos 0x0, ttl 64, id 64482, offset 0, flags [DF], proto: UDP (17), length: 51) 192.168.1.4.32805 > www.google.com.domain: [udp sum ok] 13889+ AAAA? janon. (23)
17:01:24.574350 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 16, length 64
17:01:24.624397 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 16, length 64
17:01:25.577245 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 17, length 64
17:01:25.627232 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 17, length 64
17:01:25.672824 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 51) www.google.com.domain > 192.168.1.4.32805: [udp sum ok] 2885 ServFail- q: A? janon. 0/0/0 (23)
17:01:26.578511 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 18, length 64
17:01:26.628341 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 18, length 64
17:01:27.578658 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 19, length 64
17:01:27.627964 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 19, length 64
17:01:27.999007 IP (tos 0x0, ttl 64, id 31, offset 0, flags [DF], proto: UDP (17), length: 59) 192.168.1.4.32806 > www.google.com.domain: [udp sum ok] 62029+ AAAA? www.google.cz. (31)
17:01:28.016342 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 155) www.google.com.domain > 192.168.1.4.32806: 62029 q: AAAA? www.google.cz. 2/1/0 www.google.cz. CNAME[|domain]
17:01:28.016651 IP (tos 0x0, ttl 64, id 35, offset 0, flags [DF], proto: UDP (17), length: 59) 192.168.1.4.32806 > www.google.com.domain: [udp sum ok] 62262+ A? www.google.cz. (31)
17:01:28.019062 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 75) www.google.com.domain > 192.168.1.4.32806: [udp sum ok] 62262- q: A? www.google.cz. 1/0/0 www.google.cz. A 1.0.0.0 (47)
17:01:28.019367 IP (tos 0x8, ttl 64, id 62525, offset 0, flags [DF], proto: TCP (6), length: 44) 192.168.1.4.36394 > 1.0.0.0.http: S, cksum 0x1fe9 (correct), 472773657:472773657(0) win 5840 <mss 1460>
17:01:28.578742 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 20, length 64
17:01:28.628336 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 20, length 64
17:01:28.658834 IP (tos 0x0, ttl 64, id 64483, offset 0, flags [DF], proto: UDP (17), length: 51) 192.168.1.4.32805 > www.google.com.domain: [udp sum ok] 13889+ AAAA? janon. (23)
17:01:29.578812 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 21, length 64
17:01:29.627964 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 21, length 64
17:01:30.487285 IP (tos 0x0, ttl 64, id 653, offset 0, flags [DF], proto: UDP (17), length: 60) 192.168.1.4.32806 > www.google.com.domain: [udp sum ok] 38070+ AAAA? www.google.com. (32)
17:01:30.488945 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 60) www.google.com.domain > 192.168.1.4.32806: [udp sum ok] 38070- q: AAAA? www.google.com. 1/0/0 [|domain]
17:01:30.489113 IP (tos 0x0, ttl 64, id 653, offset 0, flags [DF], proto: UDP (17), length: 60) 192.168.1.4.32806 > www.google.com.domain: [udp sum ok] 53756+ A? www.google.com. (32)
17:01:30.490626 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 76) www.google.com.domain > 192.168.1.4.32806: [udp sum ok] 53756- q: A? www.google.com. 1/0/0 www.google.com. A www.google.com (48)
17:01:30.490950 IP (tos 0x8, ttl 64, id 41566, offset 0, flags [DF], proto: TCP (6), length: 44) 192.168.1.4.58297 > www.google.com.http: S, cksum 0x265e (correct), 472228048:472228048(0) win 5840 <mss 1460>
17:01:30.578886 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 22, length 64
17:01:30.628819 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 22, length 64
17:01:31.579085 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 23, length 64
17:01:31.629193 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 23, length 64
17:01:32.579123 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 24, length 64
17:01:32.629063 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 24, length 64
17:01:33.491138 IP (tos 0x8, ttl 64, id 41567, offset 0, flags [DF], proto: TCP (6), length: 44) 192.168.1.4.58297 > www.google.com.http: S, cksum 0x265e (correct), 472228048:472228048(0) win 5840 <mss 1460>
17:01:33.579205 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 25, length 64
17:01:33.628940 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 25, length 64
17:01:33.659231 IP (tos 0x0, ttl 64, id 1446, offset 0, flags [DF], proto: UDP (17), length: 51) 192.168.1.4.32806 > www.google.com.domain: [udp sum ok] 32837+ A? janon. (23)
17:01:34.579278 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 26, length 64
17:01:34.629052 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 26, length 64
17:01:34.766736 IP (tos 0x8, ttl 64, id 3276, offset 0, flags [DF], proto: TCP (6), length: 44) 192.168.1.4.58298 > www.google.com.http: S, cksum 0xbc07 (correct), 483658359:483658359(0) win 5840 <mss 1460>
17:01:35.579358 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 27, length 64
17:01:35.628194 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 27, length 64
17:01:35.673035 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 51) www.google.com.domain > 192.168.1.4.32805: [udp sum ok] 13889 ServFail- q: AAAA? janon. 0/0/0 (23)
17:01:35.673073 IP (tos 0xc0, ttl 64, id 2873, offset 0, flags [none], proto: ICMP (1), length: 79) 192.168.1.4 > www.google.com: ICMP 192.168.1.4 udp port 32805 unreachable, length 59
IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP (17), length: 51) www.google.com.domain > 192.168.1.4.32805: [udp sum ok] 13889 ServFail- q: AAAA? janon. 0/0/0 (23)
17:01:36.579411 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 28, length 64
17:01:36.629082 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 28, length 64
17:01:37.579541 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 192.168.1.4 > www.google.com: ICMP echo request, id 48143, seq 29, length 64
17:01:37.629195 IP (tos 0x0, ttl 244, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) www.google.com > 192.168.1.4: ICMP echo reply, id 48143, seq 29, length 64


162 packets captured
324 packets received by filter
0 packets dropped by kernel
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
ping server_name don't works ping IP_address yes... why? Joan Murt Linux - Enterprise 5 07-20-2006 01:15 AM
Ping works but write,talk doesnt nethunter Linux - Networking 1 02-02-2006 01:48 PM
DNS look up works, ping only works for some sites any ideas? Mantrout Linux - Wireless Networking 3 01-29-2006 11:59 AM
Bluetooth works... but then doesnt? c0rderr0y Linux - Hardware 1 08-07-2005 01:18 PM
ping doesnt work irfanhab Linux - General 5 09-17-2004 02:45 PM


All times are GMT -5. The time now is 03:10 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration