Does anyone know how to or know of a web page where I can find how to change the MTU speed in Unix registry? Any info. would be greatly appreciated.
Thanks,
Techie (2 Replies)
Hi, Just want to ask on how to check and change the MTU size of the nodes from 1500 to 9000? I need to match the MTU size of some cluster nodes which has 1500 to the others with 9000 because they are inconsistent. Thanks (1 Reply)
Hi,
Curious problem with IPV6. Situation is wget request from squid proxy via intermediate router. With IPV4 (wget -4) speed is ~100MB/sec. With IPV6 (wget -6) it drops to 30KB/sec.
Examining the traffic with tcpdump shows that the squid box is regularly sending out over-sized packets (>MTU)... (5 Replies)
Hi,
Can any one please help me increase the arp stale time of an ipv6 interface on linux platform ?
I have tried increasing the variable gc_stale_time but that doesnt work.
Thanks (2 Replies)
Hi Al,
In course of understanding networking in Solaris, I have these doubts on Interfaces. Please clarify me. I have done fair research in this site and others but could not be clarified.
1. In the "ifconfig -a" command, I see many interfaces and their configurations. But I see many... (1 Reply)
Couldn't find an IRIX forum, so I'm posting to this one...
Just had our SAs rebuild an IRIX machine and now I need to set the MTU to 1344 (vice 1500 default). I can set it manually using the ifconfig command, but it won't survive a reboot. I made an entry into the /etc/init.d/ifconfig-1.options... (0 Replies)
Hi,
I have created a bonding bond1 interface with 6 Eth , mode=4. Recently i have changed my old ipv6 to new one and tried to restart as well as reload network service. Post which i can see old as well as changed ipv6 in ifconfig command output. Below are few files and command output for your... (1 Reply)
Discussion started by: omkar.jadhav
1 Replies
LEARN ABOUT CENTOS
ipsec_tncfg
IPSEC_TNCFG(5) [FIXME: manual] IPSEC_TNCFG(5)NAME
ipsec_tncfg - lists IPSEC virtual interfaces attached to real interfaces
SYNOPSIS
ipsec tncfg
cat/proc/net/ipsec_tncfg
OBSOLETE
Note that tncfg is only supported on the classic KLIPS stack. It is not supported on any other stack and will be completely removed in
future versions. A replacement command still needs to be designed
DESCRIPTION
/proc/net/ipsec_tncfg is a read-only file which lists which IPSEC virtual interfaces are attached to which real interfaces, through which
packets will be forwarded once processed by IPSEC.
Each line lists one ipsec I/F. A table entry consists of:
+
an ipsec virtual I/F name
+
a visual and machine parsable separator '->', separating the virtual I/F and the physical I/F,
+
a physical I/F name, to which the ipsec virtual I/F is attached or NULL if it is not attached,
+
the keyword mtu=,
+
the MTU of the ipsec virtual I/F,
+
the automatically adjusted effective MTU for PMTU discovery, in brackets,
+
a visual and machine parsable separator '->', separating the virtual I/F MTU and the physical I/F MTU,
+
the MTU of the attached physical I/F.
EXAMPLES
ipsec2 -> eth3 mtu=16260(1443) -> 1500
shows that virtual device ipsec2 with an MTU of 16260 is connected to physical device eth3 with an MTU of 1500 and that the effective MTU
as a result of PMTU discovery has been automatically set to 1443.
ipsec0 -> wvlan0 mtu=1400(16260) -> 1500
shows that virtual device ipsec0 with an MTU of 1400 is connected to physical device wvlan0 with an MTU of 1500 and no PMTU packets have
gotten far enough to bump down the effective MTU from its default of 16260.
ipsec3 -> NULL mtu=0(0) -> 0
shows that virtual device ipsec3 is not connected to any physical device.
FILES
/proc/net/ipsec_tncfg, /usr/local/bin/ipsec
SEE ALSO ipsec(8), ipsec_manual(8), ipsec_eroute(5), ipsec_spi(5), ipsec_spigrp(5), ipsec_klipsdebug(5), ipsec_tncfg(8), ipsec_version(5),
ipsec_pf_key(5)HISTORY
Written for the Linux FreeS/WAN project <http://www.freeswan.org/> by Richard Guy Briggs.
[FIXME: source] 10/06/2010 IPSEC_TNCFG(5)