fli4l-DSL kein Kontakt zw. clients

Hallo,
bei allem, was ich bisher gesichtet habe zu meinem Problem, mutet es mir inzwischen
seltsam "banal" an - aber vielleicht gerade deswegen finde ich keine Lösung.

Problem:
Die clients meines LANs können nicht miteinander kommunizieren (genau genommen
ist es in diesem Zustand ja nicht mal eins).

Situation:
Ich betreibe einen fli4l-router zwischen einem switch und einem DSL-Modem,
als Disketten-Version. Verkabelung, NICs, IPs - alles standard, der internet-Zugang
macht keine Probleme. Insgesamt sind 4 PCs (alle Win XP, 3x prof., 1x home) angeschlossen.
Ein DHCP-server läuft nicht, IPs sind manuell eingetragen, alle in einem subnet (natürlich),
standard-gateway und DNS-server sind auf den clients eingetragen.

Was es alles nicht gibt:
W-Lan, VPN, IpCop, 2 Netzwerke, portforwarding für spezielle progs, Domäne, ISDN ...

Was ich beobachte:
Die clients kommen problemlos ins www, imonc läuft auf meiner Kiste,
alles prima, alles fast ethernet. ping-Versuche zwischen den clients: Zeitüberschreitung.
Suche in Windows nach Netzwerk-Rechnern: ergebnislos, nichts.
Wenn der fli4l mal ausfällt/einfriert (ich muß im Bios wohl ein paar Stromspar-Modi
abstellen), die hardware aber ansonsten läuft, dann können sich die clients untereinander erreichen !?

Fehlen da nun Einträge in der config des routers ?
Oder fehlen Einstellungen auf der Windows-client-Seite ?

Ich poste mal meine base.txt:

##-----------------------------------------------------------------------------
## base.txt - fli4l configuration parameters 2.0.8
##
##
## P L E A S E R E A D T H E D O C U M E N T A T I O N ,
## S E E R E A D M E . T X T
##
## B I T T E U N B E D I N G T D I E D O K U M E N T A T I O N
## L E S E N , S I E H E R E A D M E . T X T
##
## Creation: 26.06.2001 fm
## Last Update: $Id: base.txt,v 1.20.2.8 2002/12/02 15:21:02 rresch Exp $
##
## Copyright (c) 2001-2002 Frank Meyer <frank@fli4l.de>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##-----------------------------------------------------------------------------
#------------------------------------------------------------------------------

1. General settings:

#------------------------------------------------------------------------------
HOSTNAME='fli4l' #name of fli4l router
PASSWORD='XXXXXXX' #password for telnetd, ftpd and sshd
MOUNT_BOOT='rw' #mount boot device (floppy): ro, rw, no
RAMSIZE='2048' #size of ramdisk for unzipped opt.tgz

1. the variables MOUNT_OPT, PART_OPT and UPDATE_MODE will be ignored if
2. RAMSIZE is not empty. see docu

MOUNT_OPT='ro' #mount opt device: ro, rw
PART_OPT='hda2' #location of opt-files? ram1 or disk-partition
UPDATE_MODE='full' #add, cfg, full, none, see documentation
#------------------------------------------------------------------------------

1. Ethernet card drivers:
2. uncomment your ethernet card

#------------------------------------------------------------------------------
ETH_DRV_N='2' #number of ethernet drivers to load, usually 1
#ETH_DRV_1='3c505' # ISA: 3COM Etherlink Plus (3c505)
#ETH_DRV_1='3c507' # ISA: 3COM Etherlink 16 (3c507)
#ETH_DRV_1='3c509' # ISA: 3COM EtherLinkIII (3c509)
#ETH_DRV_1='3c515' # ISA: 3COM EtherLink XL ISA (3c515)
#ETH_DRV_1='3c59x' # PCI: 3COM Vortex/Boomerang 3c59x,3c900,3c905
#ETH_DRV_1='82596' # Apricot Xen-II on board Ethernet
#ETH_DRV_1='3c503' # ISA: 3COM EtherLinkII (3c503)
#ETH_DRV_1='e2100' # ISA: Cabletron E21xx ISA
#ETH_DRV_1='hp' # ISA: HP PCLAN (27245, 27xxx) ISA
#ETH_DRV_1='hp-plus' # ISA: HP PCLAN+ (27247B and 27252A) ISA
ETH_DRV_1='3c59x' #ISA: NE2000 ISA clone (eg. Realtek 8019,

1. Accton 16xx, NatSemi 8390, UMC 9003/9008)

#ETH_DRV_1='ne2k-pci' # PCI: NE2000 PCI clone (eg. Realtek 8029,

1. Winbond 89c940)

#ETH_DRV_1='smc-ultra' # ISA: SMC ULTRA
#ETH_DRV_1='smc-ultra32' # EISA: SMC ULTRA32 (NEW)
#ETH_DRV_1='wd' # ISA: SMC WD80*3
#ETH_DRV_1='at1700' # ISA: AT1700 (Fujitsu 86965) ISA
#ETH_DRV_1='cs89x0' # ISA: IBM Etherjet, cs89x0 based Cards (Option io=0xnnn necessary!)
#ETH_DRV_1='de4x5' # PCI/EISA: Digital DE425, DE434, DE435, DE450, DE500
#ETH_DRV_1='depca' # ISA: DEPCA, DE10x, DE200, DE201, DE202, DE422
#ETH_DRV_1='dgrs' # PCI: Digi International RightSwitch PCI/EISA
#ETH_DRV_1='dmfe' # PCI: DM9102 compatible PCI cards from Davicom
#ETH_DRV_1='lp486e' # ISA: Intel Professional Workstation/panther 82596
#ETH_DRV_1='eepro' # ISA: Intel EtherExpress Pro/10
#ETH_DRV_1='eepro100' # PCI: Intel EtherExpressPro PCI 10+/100B/100+
#ETH_DRV_1='eexpress' # ISA: EtherExpress16 ISA
#ETH_DRV_1='epic100' # PCI: SMC EPIC/100 (EtherPower II) PCI
#ETH_DRV_1='eth16i' # ISA/EISA: ICL EtherTeam 16i/32
#ETH_DRV_1='ewrk3' # ISA: EtherWORKS 3 ISA (DE203, DE204, DE205)
#ETH_DRV_1='fa3xx' # PCI: NETGEAR FA3XX PCI Ethernet Controller
#ETH_DRV_1='fealnx' # PCI: ASOUND LAN 8139 card - not RTL8139 (NEW)
#ETH_DRV_1='hp100' # ISA/EISA/PCI: HP 10/100VG PCLAN (ISA, EISA, PCI)
#ETH_DRV_1='lance' # ISA: AMD LANCE and PCnet (AT1500, NE2100) ISA
#ETH_DRV_1='old_tulip' # PCI: Old DECchip Tulip (dc21x4x) PCI
#ETH_DRV_1='pcnet32' # PCI: AMD PCI PCnet32
#ETH_DRV_1='rtl8139-orig' # PCI: RealTek 8129/8139 (not 8019/8029!)
#ETH_DRV_1='rtl8139' # PCI: RealTek 8129/8139 (not 8019/8029!) (NEW)
#ETH_DRV_1='8139too' # PCI: RealTek 8139 10/100 MB (NEW)
#ETH_DRV_1='sis900' # PCI: SiS 900/7016
#ETH_DRV_1='sundance' # PCI: DFE-550FX or DFE-530TXS (NEW)
#ETH_DRV_1='tlan' # PCI: TI ThunderLAN (Compaq Netelligent ...)
#ETH_DRV_1='tulip' # PCI: DECchip Tulip (dc21x4x) PCI
#ETH_DRV_1='natsemi' # PCI: Nat Semi
#ETH_DRV_1='starfire' # PCI: Starfire
#ETH_DRV_1='via-rhine' # PCI: VIA Rhine PCI (3043, VT86c100A, dfe-530tx)
#ETH_DRV_1='winbond-840' # PCI: Winbond 840
#ETH_DRV_1='lanstreamer' # Token Ring: IBM Auto LANStreamer PCI Adapter
#ETH_DRV_1='olympic' # Token Ring: IBM cards (Pit/Pit-Phy/Olympic)
#ETH_DRV_1='ibmtr' # Token Ring: IBM 16/4
#ETH_DRV_1='pcnet_cs' # PCMCIA: NS8390-based cards (NE2000, DLINK etc)
#ETH_DRV_1='3c574_cs' # PCMCIA: 3Com 574
#ETH_DRV_1='3c575_cb' # PCMCIA: 3Com 575
#ETH_DRV_1='3c589_cs' # PCMCIA: 3Com 589
#ETH_DRV_1='airo' # PCMCIA: Airo 4500 & 4800 series cards
#ETH_DRV_1='airo_cs' # PCMCIA: Airo 4500 & 4800 series cards
#ETH_DRV_1='eepro100_cb' # PCMCIA: EtherExpress Pro 100
#ETH_DRV_1='epic_cb' # PCMCIA: SMC 83c170 EPIC/100
#ETH_DRV_1='ibmtr_cs' # PCMCIA: IBM Token Ring
#ETH_DRV_1='netwave_cs' # PCMCIA: Netwave AirSurfer Wireless LAN
#ETH_DRV_1='nmclan_cs' # PCMCIA: New Media Ethernet LAN
#ETH_DRV_1='ray_cs' # PCMCIA: Raylink wireless cards
#ETH_DRV_1='smc91c92_cs' # PCMCIA: SMC91c92-based cards
#ETH_DRV_1='tulip_cb' # PCMCIA: DEC 21040-family cards
#ETH_DRV_1='wavelan_cs' # PCMCIA: WaveLAN
#ETH_DRV_1='wavelan2_cs' # PCMCIA: WaveLAN2
#ETH_DRV_1='wvlan_cs' # PCMCIA: Lucent WaveLAN/IEEE 802.11
#ETH_DRV_1='xirc2ps_cs' # PCMCIA: Xircom: CE2, CEM28, CEM33, or CE3
#ETH_DRV_1='wl24_cs' # PCMCIA: ELSA Airlancer MC-2
#ETH_DRV_1='cs89x0_cs' # PCMCIA: IBM EtherJet Ethernet Adapter
#ETH_DRV_1='orinoco_cs' # PCMCIA: Orinoco Based WLAN Cards (NEW)
#ETH_DRV_1='axnet_cs' # PCMCIA: Asix AX88190 Fast Ethernet (NEW)
ETH_DRV_1_OPTION=''
#------------------------------------------------------------------------------

1. Ether networks used with IP protocol:

#------------------------------------------------------------------------------
IP_ETH_N='1' #number of ip ethernet networks, usually 1
IP_ETH_1_NAME='' #optional: other device name than ethX
IP_ETH_1_IPADDR='192.168.2.1' #IP address of your nth ethernet card
IP_ETH_1_NETWORK='192.168.2.0' #Network of your LAN
IP_ETH_1_NETMASK='255.255.255.0' #netmask of your LAN
#------------------------------------------------------------------------------

1. Additional routes, optional

#------------------------------------------------------------------------------
IP_DEFAULT_GATEWAY='' #normally not used, read documentation!
IP_ROUTE_N='0' #number of additional routes
IP_ROUTE_1='192.168.7.0 255.255.255.0 192.168.6.99'# network netmask gateway
#------------------------------------------------------------------------------

1. Masquerading:

#------------------------------------------------------------------------------
MASQ_NETWORK='192.168.2.0/24' #networks to masquerade (e.g. our LAN)
MASQ_MODULE_N='1' #load n masq modules (default: only ftp)
MASQ_MODULE_1='ftp' #ftp
MASQ_MODULE_2='h323' #h323 (netmeeting)
MASQ_MODULE_3='icq' #icq (use with caution!)
MASQ_MODULE_4='irc' #irc
MASQ_MODULE_5='raudio' #raudio
MASQ_MODULE_6='vdolive' #vdolive
MASQ_MODULE_7='quake' #quake
MASQ_MODULE_8='cuseeme' #cuseeme
MASQ_MODULE_9='mms' #MSN-Filetransfer
MASQ_MODULE_10='pptp' #pptp
MASQ_MODULE_11='ipsec' #ipsec
MASQ_MODULE_12='dplay' #dplay (direct play)
MASQ_MODULE_13='msn-0.02' #msn zone (use version 0.01 or 0.02)
MASQ_MODULE_14='udp_dloose' #pseudo mod: some internet games need it
MASQ_FTP_PORT_N='0' #using ftp masq-module on different ports
MASQ_FTP_PORT_1='21' #standard ftp port
MASQ_FTP_PORT_2='2021' #additional port
#------------------------------------------------------------------------------

1. Optional package: PORTFW

#

1. If you set OPT_PORTFW='yes', you can also edit opt/etc/portfw.sh

#------------------------------------------------------------------------------
OPT_PORTFW='no' #install port forwarding tools/modules
PORTFW_N='0' #how many portforwardings to set up
PORTFW_1='8080 192.168.6.15:80 tcp' #sample 1: forward ext. port 8080 to int.

1. host 192.168.6.15 to port 80 (use tcp)

PORTFW_2='3000-3010 192.168.6.15 tcp' #sample 2: forward portrange to int. host

1. 192.168.5.15 (use tcp)

#------------------------------------------------------------------------------

1. Routing without masquerading

#------------------------------------------------------------------------------
ROUTE_NETWORK='' #optional: route from/to network, no masq
#------------------------------------------------------------------------------

1. Routing: internal hosts to deny forwarding

#------------------------------------------------------------------------------
FORWARD_DENY_HOST_N='0' #number of denied hosts
FORWARD_DENY_HOST_1='192.168.6.5' #optional: 1st denied host
FORWARD_DENY_HOST_2='192.168.6.6' #optional: 2nd denied host
#------------------------------------------------------------------------------

1. Routing: ports to reject/deny forwarding (from inside and outside!)

#------------------------------------------------------------------------------
FORWARD_DENY_PORT_N='1' #no. of ports to reject/deny forwarding
FORWARD_DENY_PORT_1='137:139 REJECT' #deny/reject forwarding of netbios
FORWARD_TRUSTED_NETS='' #but allow forwarding between LANs
#------------------------------------------------------------------------------

1. Firewall: ports to reject/deny from outside (all served ports)

#

1. here we leave two ports untouched:

#

1. 53 dns
2. 113 auth

#------------------------------------------------------------------------------
FIREWALL_DENY_PORT_N='6' #no. of ports to reject/deny
FIREWALL_DENY_PORT_1='0:52 REJECT' #privileged ports: reject or deny
FIREWALL_DENY_PORT_2='54:112 REJECT' #privileged ports: reject or deny
FIREWALL_DENY_PORT_3='114:1023 REJECT' #privileged ports: reject or deny
FIREWALL_DENY_PORT_4='5000:5001 REJECT' #imond/telmond ports: reject or deny
FIREWALL_DENY_PORT_5='8000 REJECT' #proxy access: reject or deny
FIREWALL_DENY_PORT_6='20012 REJECT' #vbox server access: reject or deny
FIREWALL_DENY_ICMP='no' #deny icmp (ping): yes or no
FIREWALL_LOG='yes' #log access to rejected/denied ports
#------------------------------------------------------------------------------

1. Domain configuration:

#------------------------------------------------------------------------------
START_DNS='yes' #start dns server: yes or no
DNS_FORWARDERS='192.76.144.66' #DNS servers of your provider, e.g. MSN
DNS_VERBOSE='no' #log queries in /usr/local/ens/ens.log
DOMAIN_NAME='XXXXX.fli4l' #your domain name
DNS_FORBIDDEN_N='0' #number of forbidden domains
DNS_FORBIDDEN_1='foo.bar' #1st forbidden domain
DNS_FORBIDDEN_2='bar.foo' #2nd forbidden domain
HOSTS_N='8' #number of hosts in your domain
HOST_1='192.168.2.1 fli4l' #1st host: ip and name
HOST_2='192.168.2.2 client2' #2nd host: ip and name
HOST_3='192.168.2.3 client3' #3rd host: ip and name
HOST_4='192.168.2.4 client4' #4th host: ip and name
#------------------------------------------------------------------------------

1. Special DNS configuration

#------------------------------------------------------------------------------
DNS_N='0' #number of special dns servers, normally 0
#DNS_1='firma.de 192.168.1.12' # 1st special dns server for firma.de
#DNS_2='lan.firma.de 192.168.2.12' # 2nd special dns server for lan.firma.de
#------------------------------------------------------------------------------

1. imond configuration:

#------------------------------------------------------------------------------
START_IMOND='yes' #start imond: yes or no
IMOND_PORT='5000' #TCP-Port, see also FIREWALL_DENY_PORT_x!
IMOND_PASS='' #imond-password, may be empty
IMOND_ADMIN_PASS='' #imond-admin-password, may be empty
IMOND_LED='' #tty for led: com1 - com4 or empty
IMOND_BEEP='no' #beep if connection going up/down
IMOND_LOG='no' #log /var/log/imond.log: yes or no
IMOND_LOGDIR='/var/log' #log-directory, e.g. /var/log
IMOND_ENABLE='yes' #accept "enable/disable" commands
IMOND_DIAL='yes' #accept "dial/hangup" commands
IMOND_ROUTE='yes' #accept "route" command
IMOND_REBOOT='yes' #accept "reboot" command
#------------------------------------------------------------------------------

1. Generic circuit configuration:

#------------------------------------------------------------------------------
IP_DYN_ADDR='yes' #use dyn. ip addresses (most providers do)
DIALMODE='auto' #standard dialmode: auto, manual, or off
#------------------------------------------------------------------------------

1. optional package: syslogd

#------------------------------------------------------------------------------
OPT_SYSLOGD='no' #start syslogd: yes or no
SYSLOGD_DEST_N='1' #number of destinations
SYSLOGD_DEST_1='*.* /dev/console' #nth prio & destination of syslog msgs
SYSLOGD_DEST_2='*.* @192.168.6.2' #example: loghost 192.168.6.2
SYSLOGD_DEST_3='kern.info /var/log/dial.log'# example: log infos
#------------------------------------------------------------------------------

1. optional package: klogd

#------------------------------------------------------------------------------
OPT_KLOGD='no' #start klogd: yes or no
#------------------------------------------------------------------------------

1. optional package: y2k correction

#------------------------------------------------------------------------------
OPT_Y2K='no' #y2k correction: yes or no
Y2K_DAYS='' #correct hardware Y2K-Bug: add x days
#------------------------------------------------------------------------------

1. Optional package: PNP

#------------------------------------------------------------------------------
OPT_PNP='no' #install isapnp tools: yes or no
HOST_5='192.168.2.8 client5'
HOST_6='192.168.2.9 client6'
HOST_7='192.168.2.10 client7'
HOST_8='192.168.2.11 client8'
ETH_DRV_2='rtl8139-orig'
ETH_DRV_2_OPTION=''

Warum die weiteren hosts immer am Ende der Datei landen, wird ein Geheimnis des wizards sein,
den ich dafür (auch) einsetzte.