Visit Our UNIX and Linux User Community

Full Discussion: Arp Problem
Operating Systems Linux Red Hat Arp Problem Post 302348315 by surfer24 on Friday 28th of August 2009 02:12:08 AM
Old 08-28-2009
Arp Problem

Dear All
i have a linux proxy server which has RHEL-5 64 bit, it has two interfaces, it has the following details

default gateway=
one static route= gw

i am facing a problem when i ping from network some times it pings successfully and some times it shows following error when i run "tcpdump -i eth0"

arp who-has tell

your help will be highly appreciated

Test Your Knowledge in Computers #224
Difficulty: Easy
In September 2019, according to NetMarketShare, Windows had just over 87% of the global desktop market, followed by Linux at close to 10%, and macOS in third place at around 2%.
True or False?

10 More Discussions You Might Find Interesting

1. IP Networking

multiple arp replies

Can someone tell me if I tweak the destination field in an arp request for TCP connection to match it with the the mac addresses of different recivers in an ethernet as the packet passes through them in short each one catches the arp request and replies, what would happen I mean will the sender of... (2 Replies)
Discussion started by: Rakesh Ranjan
2 Replies

2. Solaris

ARP Cache

Dear all, We are testing two of our servers for mq series connectivity. The scenario is, when one machine is shutting down it's services there are some scripts that do a dns update, which removes the ip address and relates it to the ip address of the other node on our dns server, and the update... (7 Replies)
Discussion started by: earlysame55
7 Replies

3. IP Networking

ARP Req Pkt

Does ARP Request packet Contains MAC Address of dest during broadcast? I found It So... When i captured ARP Req Pkts on ethereal... Rgds -Meti (1 Reply)
Discussion started by: ashokmeti
1 Replies

4. HP-UX

HW Address and arp

I was checking nettl output for a unstable telnet to my server. this is part of output: ### ***********************************STREAMS/UX*******************************@#% Timestamp : Sun Jun 22 EETDST 2008 22:14:47.492899 Process ID : Subsystem ... (4 Replies)
Discussion started by: xramm
4 Replies

5. IP Networking

Modifying ARP frames

Hi All, Is there any way to modify or filter the ARP frames?? thanks! (2 Replies)
Discussion started by: lagigliaivan
2 Replies

6. IP Networking

Stuck ARP entries

About a week ago a customer hooked up a wireless router backwards to our network, causing it to serve incorrect DHCP addresses to some of them. Our networks are mostly statically assigned so this didn't cause as much damage as it might have, but now, over a week later, I still have incomplete... (1 Reply)
Discussion started by: Corona688
1 Replies

7. UNIX for Advanced & Expert Users

Monitoring the arp table

Man page of netlink says: --------------------------------- NETLINK_ARPD For managing the arp table in user space. ---------------------------------- Is it possible to monitor arp table using Netlink? or it's just for manipulating? (1 Reply)
Discussion started by: xyzt
1 Replies

8. UNIX for Advanced & Expert Users

arp questions

Can someone please explain this output to me. Why doesn't ifconfig show the same info? ~ $ arp -a ? ( at 00:1b:21:2b:eb:0c on eth0 (4 Replies)
Discussion started by: cokedude
4 Replies

9. IP Networking

necessary ARP request?

Hello, I have 2 clients with Unix installed. host1: eth0 ( & eth1 ( host2: eth0 ( I've connected host1-eth1 to host2-eth0. host1-eth0 isn't connected. I started 'tcpdump' on wonder that host2 got ARP requests for Any idea why host1... (2 Replies)
Discussion started by: daWonderer
2 Replies

10. War Stories

What arp -s is good for

A customer appears to have drastically misunderstood our instructions for connecting to our WAN. He set his PC IP address to the same as one of the bridges. :mad: :wall: This caused much confusion on the network, to put it mildly. He called to complain about the poor performance of the network... (13 Replies)
Discussion started by: Corona688
13 Replies
TUNCTL(8)						      System Manager's Manual							 TUNCTL(8)

tunctl -- create and manage persistent TUN/TAP interfaces SYNOPSIS
tunctl [-f tun-clone-device] [-u owner] [-t device-name] tunctl [-f tun-clone-device] -d device-name DESCRIPTION
This manual page documents briefly the tunctl command. This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page. Instead, it has documentation in HTML format; see below. tunctl allows the host sysadmin to preconfigure a TUN/TAP device for use by a particular user. That user may open and use the device, but may not change any aspects of the host side of the interface. USAGE
To create an interface for use by a particular user, invoke tunctl without the -d option: # tunctl -u someuser Set 'tap0' persistent and owned by 'someuser' Then, configure the interface as normal: # ifconfig tap0 up # route add -host dev tap0 # bash -c 'echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp' # arp -Ds eth0 pub To delete the interface, use the -d option: # tunctl -d tap0 Set 'tap0' nonpersistent SEE ALSO
The UserModeLinux-HOWTO (link to URL AUTHOR
tunctl was written by Jeff Dike This manual page was written by Matt Zimmerman for the Debian GNU/Linux system, based on examples from Jeff Dike. TUNCTL(8)

Featured Tech Videos

All times are GMT -4. The time now is 11:47 AM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy