Inconsistency between RedHat 6.5 global gateway and single gateway leads to loss of default gateway


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Inconsistency between RedHat 6.5 global gateway and single gateway leads to loss of default gateway
# 1  
Redhat 6.5, loss of default gateway.

Dear friends
I use RedHat 6.5, which sets the gateway in the configuration file / etc / sysconfig / network as GATEWAY = 192.168.1.26, and the gateway in the configuration file / etc / sysconfig / network-scripts / ifcfg-eth11 as GATEWAY = 192.168.1.256. The two gateways are different. After restarting the service, the default gateway is lost and the external network cannot be accessed. Do you know why?
The configuration file information is as follows:

Code:
/ etc / sysconfig / network
NETWORKING=yes
HOSTNAME=localhost.localdomain
GATEWAY=192.168.1.26

/ etc / sysconfig / network-scripts / ifcfg-eth11
TYPE=Ethernet
DEVICE=eth11
BOOTPROTO=static
IPADDR=192.168.1.10
NETMASK=255.255.255.0
GATEWAY=192.168.1.254
METRIC=104
ONBOOT=yes
NAME=eth11

Thanks in advance....
Regards,
Tanpeng

Last edited by Neo; 05-25-2019 at 08:10 AM..
# 2  
Why do you want two default gateways??
This User Gave Thanks to MadeInGermany For This Post:
# 3  
--- Post updated at 07:04 AM ---

Quote:
Originally Posted by tanpeng
There is no need to set up two default gateways. The difference between the two profile information is due to human modification.

--- Post updated at 06:26 AM ---

Do two different configurations of gateways necessarily result in the loss of default gateways? When the information of two configuration files is inconsistent, the / etc / sysconfig / network-scripts / ifcfg-eth11 configuration information should prevail,no loss of default gateway. But my default gateway is missing.

Last edited by tanpeng; 05-27-2019 at 05:01 AM..
# 4  
Is the gateway really lost? Check with
Code:
netstat -nr | grep -w UG

This User Gave Thanks to MadeInGermany For This Post:
# 5  
I checked, No default gateway,
# 6  
Strange, I would expect that one of the two GATEWAY would supersede. You should have a RedHat contract, then contact RedHat support to clarify if this is a bug; almost certainly they will tell you to update your OS!

To resolve the conflict, with a text editor (lvim or nano or gedit or ...) you must either delete the GATEWAY line in the /etc/sysconfig/network (common to all ifcfg-X interface files) or the GATEWAY in the ifcfg-eth11!
Alternative: delete with sed, for example:
Code:
sed -i '/^GATEWAY/d' /etc/sysconfig/network

Maybe you better use the system-config-network-tui (A correction: if not present you install it with yum install system-config-network-tui).
This User Gave Thanks to MadeInGermany For This Post:
# 7  
thanks,I know how to resolve conflicts, but I don't understand why the default gateway will be lost
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #914
Difficulty: Medium
In bash, grep -v -e '^[[:space:]]*$' file.txt will filter all the blank lines from file.txt and save the results in a file called file.txt.
True or False?

9 More Discussions You Might Find Interesting

1. IP Networking

Default Gateway

I am am using IPv6 IP's with an OS of Debian. Is it possible to set a *static* default gateway w/o the router being connected? Will that gateway change when the router is connected? TIA (0 Replies)
Discussion started by: Meow613
0 Replies

2. Solaris

how to add a default gateway in a zone of different VLAN of global zone

Hi Greetings... I have an issue in connecting the zone from outside the network and it is because of default gateway. I can ping default gateway from inside the zone and not able to ping from global zone due to different VLAN issue. If i add two different gateways and restart network services,... (2 Replies)
Discussion started by: vvpotugunta
2 Replies

3. Red Hat

can't update the default gateway

Hi, I have server that I change its network configuration from using DHCP to using static IP. I have edited the file /etc/sysconfig/network-scripts/ifcfg-eth0 To: BOOTPROTO=STATIC IPADDR=xxx.xxx.xxx.xxx NETMASK=255.255.255.0 GATEWAY=yyy.yyy.yyy.yyy I did /etc/init.d/network... (2 Replies)
Discussion started by: programAngel
2 Replies

4. Linux

GNUGK-How to setup static gateway to gateway routing

Dear Sir I am a newbie in the world of IP telephony. I have been working with Asterisk PBX (SIP) and Cisco Call Manager (MGCP) but now I am learning on how to work GNUGK for H.323 Gatekeeper. I am having a problem, configuring static call routing on GNUGK in the section ... (0 Replies)
Discussion started by: mfondoum
0 Replies

5. HP-UX

where can i modify default gateway

where in configuration files can i modify default gateway in hp-ux11iv3 (5 Replies)
Discussion started by: h@foorsa.biz
5 Replies

6. AIX

Help with Default Gateway

Hi, I have two interfaces on m AIX 5.3 box. One going to 192.168.1.x and it has a gateway of 192.168.1.1. I configured the other gateway with 192.168.2.x and the default gateway as 192.168.2.1. But I can't get connectivity to the 192.168.2.1 network. Can someone help me out and let me know... (7 Replies)
Discussion started by: bbbngowc
7 Replies

7. IP Networking

default gateway in unix?

i'm a real unix newbie, setting up a network, with a router to router vpn connection with a remote site, all the win stuff is talking and pinging and all the stuff it should be doing (yeah and crashing too, lol) but no communication with the unix box, i think the problem is with my default... (3 Replies)
Discussion started by: smcg
3 Replies

8. Solaris

How can I change the default gateway?

my actual default gatewas IP is: default 192.168.11.254 and I need to change it to 192.168.11.2, I'm using Solaris 9, how can i do it? and how i can save it in case that the machine restart and have the new default gateway IP saved? (5 Replies)
Discussion started by: Lestat
5 Replies

9. HP-UX

How to add another default gateway

I am using HP-UX 11i and I need to add another default gateway. how can I do that ? (3 Replies)
Discussion started by: salhoub
3 Replies

Featured Tech Videos