ip_always_defrag is missing -- cannot control IP defragmentation

[Dusan Vujosevic]

Hi,

I have 2.2.12 (RH 6.1 - but that's not the stock kernel, I downloaded it)
and have compiled IP_ALWAYS_DEFRAGMENT in and yet I keep getting the
following from the 'network' script:

/proc/sys/net/ipv4/ip_always_defrag is missing -- cannot control IP
defragmentation

ip_always_defrag is indeed missing from /proc/sys/net/ipv4/. What am I doing
wrong? Any help is welcome.

Thanks,
Dusan

P.S. If it's any help this is my .config:
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_FIREWALL=y
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK=y
# CONFIG_IP_MULTIPLE_TABLES is not set
# CONFIG_IP_ROUTE_MULTIPATH is not set
# CONFIG_IP_ROUTE_TOS is not set
# CONFIG_IP_ROUTE_VERBOSE is not set
# CONFIG_IP_ROUTE_LARGE_TABLES is not set
# CONFIG_IP_PNP is not set
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_NETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_IP_ALWAYS_DEFRAG=y
CONFIG_IP_TRANSPARENT_PROXY=y
CONFIG_IP_MASQUERADE=y
#
# Protocol-specific masquerading support will be built as modules.
#
CONFIG_IP_MASQUERADE_ICMP=y

#
# Protocol-specific masquerading support will be built as modules.
#
# CONFIG_IP_MASQUERADE_MOD is not set
CONFIG_IP_ROUTER=y
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
CONFIG_IP_ALIAS=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y

#
# (it is safe to leave these untouched)
#
# CONFIG_INET_RARP is not set
CONFIG_SKB_LARGE=y
# CONFIG_IPV6 is not set

[Thomas Zajic]

On Mon, 01 Nov 1999 01:21:08 GMT,
Dusan Vujosevic <dvujo...@home.com> wrote:

> Hi,
>
> I have 2.2.12 (RH 6.1 - but that's not the stock kernel, I downloaded it)
> and have compiled IP_ALWAYS_DEFRAGMENT in and yet I keep getting the
> following from the 'network' script:
>
> /proc/sys/net/ipv4/ip_always_defrag is missing -- cannot control IP
> defragmentation
>
> ip_always_defrag is indeed missing from /proc/sys/net/ipv4/. What am I doing
> wrong? Any help is welcome.

Try 'echo "1" > /proc/sys/net/ipv4/ip_always_defrag'.

HTH,
Thomas
--
=-------------------------------------------------------------------------=
- Thomas Zajic <thomasDOTzajicATtelewebDOTat> Linux-2.0.38/slrn-0.9.5.7 -
- "It is not easy to cut through a human head with a hacksaw." (M. C.) -
=-------------------------------------------------------------------------=

[Malware]

Hi Dusan,

you wrote:
> I have 2.2.12 (RH 6.1 - but that's not the stock kernel, I downloaded it)
> and have compiled IP_ALWAYS_DEFRAGMENT in and yet I keep getting the
> following from the 'network' script:
>
> /proc/sys/net/ipv4/ip_always_defrag is missing -- cannot control IP
> defragmentation
>
> ip_always_defrag is indeed missing from /proc/sys/net/ipv4/. What am I doing
> wrong? Any help is welcome.

This sysctl does exist in kernels starting from 2.2.13 only. It does
replace the compile time option there. So you for now probably just
ignore that if is a warning or fix the script if it is considered to be
an error.

Malware

[Dusan Vujosevic]

Hi Malware,

You're turning into my full time help :-) and as usual you were right. The
"problem" is gone with 2.2.13. I know it was harmless (everything was just
fine and dandy without packet defragmentation), but still... I thought I
messed it up somewhere. Thanks a lot again!

Dusan

Malware <Michael....@post.rwth-aachen.de> wrote in message
news:381D03D7...@post.rwth-aachen.de...