Can't ping into or outof Redhat box
13/09/2017 15:30
Hi, I can ping my system from itself (ie local host, or via it's static IP),however I can't ping it from the outside world... (http is the same, ok fromon the box, but not from outside).

What may not be set-up correct ?

Source is Usenet: linux.redhat
Sign in to add a comment

Answer score: 5
13/09/2017 15:30 - By IP address? You'd expect to. The pings never leave the kernel.

Then your network card is not working.

Most anything at all, given lack of data like output from /sbin/ifconfig,notice of HOW you are doing the ping, what the packet counts on theinterface look like, what the tcpdump from the interface shows ...

Peter

Source is Usenet: linux.redhat
Sign in to add a comment

Answer score: 5
13/09/2017 15:30 - The ethernet interface does seem to come up (no errors on boot etc), thereare lights on on the ethernet card and the link/activity light on the routeris flashing Output of ifconfig -a eth0 has the following : Link encap:Ethernet HWaddr: 00:50:DA:01:CE:36inet addr:172.16.37.20 Bcast:172.16.37.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:0 errors:0 dropped:0 overruns:0 frame:0TX packets:16 errors:0 dropped:0 overruns:0 frame:0collisions:0 txqueuelen:100Rx bytes:0 (0.0 b) TX bytes:822 (822.0 b)Interrupt: 5 Basse address:0x220 Output of ping 172.16.37.15 (PC connected to router) PING 172.16.37.15 (172.16.37.15) 56(84) bytes of dataFrom 172.16.37.20 icmp_seq=1 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=2 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=3 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=4 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=5 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=6 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=7 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=8 Destination Host UnreachableFrom 172.16.37.20 icmp_seq=9 Destination Host UnreachableCNTRL-C---- 172.16.37.15 ping statistics ---12 packets transmitted , 0 received, +9 errorrs, 100% packet loss, time11077ms, pipe 3 if I do another ifconfig -a eth0 (after the ping)the tx packet count goes up but that's it.

If I change the router to a hub I get the same results.

Geoff.

P.T. Breuer <ptb@oboe.it.uc3m.es> wrote in messagenews:vndvsb.qgv.ln@news.it.uc3m.es...

IP),from

Source is Usenet: linux.redhat
Sign in to add a comment

Answer score: 5
13/09/2017 15:30 - I have tried different cables, with the same results.

netstat -r gives the following : Destination Gateway Genmask Flags MSSWindow irtt Iface172.16.37.0 * 255.255.255.0 U 00 0 eth0169.254.0.0 * 255.255.0.0 U 00 0 eth0127.0.0.0 * 255.0.0.0 U0 0 0 lodefault 172.16.37.254 0.0.0.0 UG 00 0 eth0 The Router IP address (on the LAN side) is 172.16.37.254Jerry Smiley <jsmiley@nc.rr.com> wrote in messagenews:VggKb.207427$dl.10549419@twister.southeast.rr.com...

therestaticok/sbin/ifconfig,

Source is Usenet: linux.redhat
Sign in to add a comment

Answer score: 5
13/09/2017 15:30 - Have you swapped out your cable....seeing that the packets are beingtransmitted, it may be that the cable is bad or may not be the correctpatch cable. Also, run netstat -r and you should the router gateway....please post theresults from the netstat -r Thanks

Source is Usenet: linux.redhat
Sign in to add a comment

eDiscover
Helpforce eDiscover provides technical articles updated each dayHelpforce eDiscover RSS feed contains the latest technical articles in RSS
Click the logo to go back to the main page
Search eDiscover
  
Categories

Click an icon to go to that category

Helpforce eDiscover contains articles about Microsoft Windows Helpforce eDiscover contains articles about Apple products and MacOS Helpforce eDiscover contains articles about Linux and POSIX operating systems Helpforce eDiscover contains articles about Helpforce Helpforce has a large variety of technical information and articles for you to read Helpforce eDiscover contains articles about databases, MYSQL, SQL Server Oracle Helpforce eDiscover contains articles about Java, JVM and the JRE Helpforce eDiscover contains articles about the QNX operating system Helpforce eDiscover contains articles about Oracle Solaris and Open Solaris Helpforce eDiscover contains articles about RISC OS, Acorn and the BBC Micro Helpforce eDiscover contains articles about Amiga and AmigaOS

Type your comment into the box below