06-06-2018
Quote:
[root@master ~]# ifconfig -a
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.73.84 netmask 255.255.255.0 broadcast 192.168.73.255
inet6 fe80::20c:29ff:fe64:3347 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:64:33:47 txqueuelen 1000 (Ethernet)
RX packets 4729 bytes 5041878 (4.8 MiB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 525 bytes 43841 (42.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.74.15 netmask 255.255.255.0 broadcast 192.168.74.255
inet6 fe80::20c:29ff:fe64:3351 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:64:33:51 txqueuelen 1000 (Ethernet)
RX packets 1000 bytes 87299 (85.2 KiB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 9 bytes 618 (618.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
The gateway is 192.168.73.1
My ask is I need both of these IPs reachable from outside.
Or
Either any one of these IP should be reachable from outside when I connected to wifi network as well as when connected to ethernet LAN network.
9 More Discussions You Might Find Interesting
1. IP Networking
Hi !
I've just got a real IP number for my personal computer. Until now, the IP was masked (NAT'ed). Anyway, the problem is like this :
I'm on a LAN with about 100 computers and I asked the admin to give me a real IP so that I can connect to my computer from my office. He gived that IP to me, but... (1 Reply)
Discussion started by: Sergiu-IT
1 Replies
2. Solaris
Is there a way to check if my Sun box's network interface card is set to 10 or 100 Mbps?
Thanks! (1 Reply)
Discussion started by: FredSmith
1 Replies
3. HP-UX
how can I determine which NIC card is virtual NIC Card
which condition can make a decision
Does HP UX have Virtual Network Adapter Concept
if ,it has
where I can Find if I Install Virutal Network Adapter
or which command that i can get it
or which software can generate
thanks (2 Replies)
Discussion started by: alert0919
2 Replies
4. Solaris
I couldn't install my nic in solaris 10. I compiled and added
the driver but failed to attach the driver and ifconfig output
shows only loopback dev. Please see the following output and tell
me whether my nic has been detected and why the driver failed to
attach?
My nic is detected in linux... (0 Replies)
Discussion started by: vectrum
0 Replies
5. IP Networking
I am new in squid proxy.
My question is how to (and if it's necessary) to set one NIC for inbound traffic (http requests) and one NIC for outbound traffic (http answers)?
Thank you in advance! (4 Replies)
Discussion started by: aixlover
4 Replies
6. Red Hat
Dear All
I want tune my NIC's rps, rfs and xps value.
In my system I have two NIC (eth0, eth1) and I have a bond0 ( eth0, eth1).
Here is the question? Which device should I modify ?
eth0 and eth1? or just modify bond0 or modify all device (eth0, eth1, bond0)
Any advice is welcome.... (0 Replies)
Discussion started by: nnnnnnine
0 Replies
7. Solaris
I have a Solaris 11 machine with 2 network cables attached. The first one is the default route and is working okay. I am trying to activate the second on another subnet, but am sure missing something.
The first one is on 10.30.128. and with it everything works fine,
but when I try to add the... (0 Replies)
Discussion started by: ad101
0 Replies
8. Solaris
posted this on the other sub-forum
https://www.unix.com/unix-for-dummies-questions-and-answers/246504-solaris-11-2nd-nic-different-subnet.html
apologies if linking is not appropriate
Thanks for your help. (0 Replies)
Discussion started by: ad101
0 Replies
9. UNIX for Advanced & Expert Users
Dear all,
I have a remote CentOS7 server that has two network cards. Each card has four ports and port one of card one was defined with the IP address assigned to the server. So far, so good and it's been working for over a year. We have now got cables sorted out so there are four paths... (4 Replies)
Discussion started by: rbatte1
4 Replies
LEARN ABOUT FREEBSD
if_gre
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