09-20-2002
Use this command:
$ ifconfig -a
Your output will be like this:
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
inet 127.0.0.1 netmask ff000000
hme0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 10.14.1.20 netmask fffffc00 broadcast 10.14.1.255
You will have either a le0, hme0, qfe0...the inet is the IP address.
Check the man page on ifconfig
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
what is the comamnd to get the server address using the IP address ?
Please help.
Thanks,
Sona. (3 Replies)
Discussion started by: Sona
3 Replies
2. Shell Programming and Scripting
Hi,
I want to know the IP of my Unix server in my script programming.
Below are the my trial and i didn't find anything useful for me.because i want only IP.
hostname -> Giving the name of the server and
hostanme -i -> Giving the error message that..i am not super user.
ipConfig ->... (7 Replies)
Discussion started by: Balamani
7 Replies
3. AIX
How to find the router IP address (2 Replies)
Discussion started by: AIXlearner
2 Replies
4. IP Networking
Hello,
I have a server in C that is listening on a socket using s_addr = INADDR_ANY, and clients connect to it. How can I know which address did the client use to connect to that socket?
It might be 127.0.0.1 (if the server is running locally), 192.168.x.x (if the client is from inside the... (1 Reply)
Discussion started by: royger
1 Replies
5. HP-UX
I am moving an HP UX 9000 server to a new subnet. How do I change the server's IP address??
Many thanks in advance
:confused: (3 Replies)
Discussion started by: ldaliosmane
3 Replies
6. Red Hat
Where can you find your DHCP Server address? I checked all of the files that this mentioned with no luck.
Quick HOWTO : Ch08 : Configuring the DHCP Server - Linux Home Networking (6 Replies)
Discussion started by: cokedude
6 Replies
7. Programming
Hello,
I developed a client task in C and a server task in C (an application strongly coupled). The client needs the server IP address to connect to the server. The problem is: I don't know in advance which machine will run the client and which machine will run the server so I can know the ip... (3 Replies)
Discussion started by: chercheur857
3 Replies
8. UNIX for Dummies Questions & Answers
Hi Guys,
I want to find another(Local host) machine IP address from my machine.. We are all connected in the same server, I mean same LAN.
What i done is
Connected with that user machine using SSH and SU.. After that i used IFCONFIG but it shows my Ip address. Can not able to get the... (8 Replies)
Discussion started by: Adhi
8 Replies
9. Red Hat
Hi,
How to find ip address of Linux servers ?
I know by ping command we can find ip address but wanted to check with you.
Thanks,
Maddy (5 Replies)
Discussion started by: Maddy123
5 Replies
10. Red Hat
I want to find out the DHCPv6 server's ip address in the network. I went through the lease files but could find only duid/server-id and not the IPv6 address of the dhcp server. And I couldn't find any commands to get that information. Is there a way to get the DHCPv6 server's IPv6 address?
... (0 Replies)
Discussion started by: bshalini
0 Replies
GRE(4) BSD Kernel Interfaces Manual GRE(4)
NAME
gre -- encapsulating network device
SYNOPSIS
To compile the driver into the kernel, place the following line in the kernel configuration file:
device gre
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_gre_load="YES"
DESCRIPTION
The gre network interface pseudo device encapsulates datagrams into IP. These encapsulated datagrams are routed to a destination host, where
they are decapsulated and further routed to their final destination. The ``tunnel'' appears to the inner datagrams as one hop.
gre interfaces are dynamically created and destroyed with the ifconfig(8) create and destroy subcommands.
This driver corresponds to RFC 2784. Encapsulated datagrams are prepended an outer datagram and a GRE header. The GRE header specifies the
type of the encapsulated datagram and thus allows for tunneling other protocols than IP. GRE mode is also the default tunnel mode on Cisco
routers. gre also supports Cisco WCCP protocol, both version 1 and version 2.
The gre interfaces support a number of additional parameters to the ifconfig(8):
grekey Set the GRE key used for outgoing packets. A value of 0 disables the key option.
enable_csum Enables checksum calculation for outgoing packets.
enable_seq Enables use of sequence number field in the GRE header for outgoing packets.
EXAMPLES
192.168.1.* --- Router A -------tunnel-------- Router B --- 192.168.2.*
/
/
+------ the Internet ------+
Assuming router A has the (external) IP address A and the internal address 192.168.1.1, while router B has external address B and internal
address 192.168.2.1, the following commands will configure the tunnel:
On router A:
ifconfig greN create
ifconfig greN inet 192.168.1.1 192.168.2.1
ifconfig greN inet tunnel A B
route add -net 192.168.2 -netmask 255.255.255.0 192.168.2.1
On router B:
ifconfig greN create
ifconfig greN inet 192.168.2.1 192.168.1.1
ifconfig greN inet tunnel B A
route add -net 192.168.1 -netmask 255.255.255.0 192.168.1.1
NOTES
The MTU of gre interfaces is set to 1476 by default, to match the value used by Cisco routers. This may not be an optimal value, depending
on the link between the two tunnel endpoints. It can be adjusted via ifconfig(8).
For correct operation, the gre device needs a route to the decapsulating host that does not run over the tunnel, as this would be a loop.
The kernel must be set to forward datagrams by setting the net.inet.ip.forwarding sysctl(8) variable to non-zero.
SEE ALSO
gif(4), inet(4), ip(4), me(4), netintro(4), protocols(5), ifconfig(8), sysctl(8)
A description of GRE encapsulation can be found in RFC 2784 and RFC 2890.
AUTHORS
Andrey V. Elsukov <ae@FreeBSD.org>
Heiko W.Rupp <hwr@pilhuhn.de>
BUGS
The current implementation uses the key only for outgoing packets. Incoming packets with a different key or without a key will be treated as
if they would belong to this interface.
The sequence number field also used only for outgoing packets.
BSD
November 7, 2014 BSD