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- From: venenga@iscsvax.uni.edu
- Newsgroups: comp.sys.sun.admin
- Subject: Changing IP flags under Solaris 2.x
- Message-ID: <1993Jan21.091749.10064@iscsvax.uni.edu>
- Date: 21 Jan 93 09:17:49 -0600
- Organization: University of Northern Iowa
- Lines: 40
-
- Netters,
-
- We just purchased a SPARCstation 10 running Solaris 2.1. I am having
- problems with ping, in that certain hosts on our network won't respond
- to the ping request. I have captured the packets from the SUN (using both
- a sniffer and the supplied snoop), and see only one difference between the
- Solaris packets and the ping request packets generated from other hosts on
- the network. The Solaris IP header has the flags set at 0x4, which disallows
- fragmentation. The IP header from the other platforms (SUNOS4, SYSVR3, etc.)
- has the flags set at 0x0, which allows fragmentation. The snoop output looks
- like:
-
- IP: Flags = 0x4 (Solaris)
- IP: .1.. .... - do not fragment
-
- versus
-
- IP: Flags = 0x0 (Others)
- IP: .0.. .... - may fragment
-
-
- My question is, how do I change these flags on Solaris to 0x0. I've looked
- at ndd and ifconfig, but cannot figure out if either of these is what I need.
- From what I've read and played with, neither ndd nor ifconfig allows me to
- set these flags. Any help would be greatly appreciated. Thanks.
-
- -jay
-
- ===========================================================================
- Jay Venenga Internet: venenga@uni.edu
- Systems Programmer or: venenga@att1.uni.edu
- Information Systems and Computing Services
- University of Northern Iowa USWestNet: (319) 273-2008
- Cedar Falls, IA 50614-0509 FAX: (319) 273-3509
-
- Disclaimer: Standard
-
- "Thinking for us, basically, is a trick, like a dog walking on two legs.
- It's amazing we can do it at all." - Hans Moravec
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