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Date:      Sat, 23 Feb 2002 11:20:01 +1100 (EST)
From:      =?iso-8859-1?q?Keith=20Spencer?= <bsd2000au@yahoo.com.au>
To:        freebsd-questions@freebsd.org
Subject:   Help Help Help( with routes!)..I thought I knew what I was doing.
Message-ID:  <20020223002001.30135.qmail@web12004.mail.yahoo.com>

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Hi all,
We are a school using Freebsd.
I am in desperate need of help with routing.
I have recently had to make changes becuse ISP folded.
I had 2 ISPs with corresponding gateways. Reason being
that ADSL was dynamic IP...

LAN->Gateway1(via NAT)->ADSL->Telstra(ISP)
             AND
LAN->Gateway2(via NAT)->ISDN->Other(ISP)

Gateway1 is multi-homed 192.168.1.220 203.56.180.4
has squid proxy running on it. It has a dynamic ADSL
interface IP to Telstra.

Gateway2 is multi-homed 192.168.1.1 203.56.180.1
Is the DNS web and mail server. 

Our Domain = smmc.qld.edu.au
currently mapped to 203.56.180.0 -> 203.56.180.255

All worked fine until these changes made were...

Gateway1
-----------------------------------------------
No changes to this Gateway except NOW it has a static
ADSL link IP and Telstra have added our 203.56.180
routes. Here are the the gateway2 routes after a
reboot:
Dest        Gateway        Flags    Refs  Use Netif
Exp
default      165.228.7.1      UGSc    9   484 tun0
127.0.0.1    127.0.0.1        UH      20  53      lo0
165.228.7.1  165.228.7.207    UH      9   0   tun0
192.168.1    link#1           UC      4   0   fxp0 =>
192.168.1.1  0:c0:f0:14:f7:dc UHLW    1   37  fxp0 868
192.168.1.220 0:3:47:70:3e:11 UHLW    0   2   lo0
203.56.180   link#1           UC      1   0   fxp0 =>
203.56.180.1 0:c0:f0:14:f7:dc UHLW    0   82  fxp0 604
-----------------------------------------------

Gateway2
------------------------------------------------
ISDN connection died when ISP did so I changed rc.conf

defaultRouter=203.56.180.4
gateway_enable="no"

PPP was disabled after a reboot here are the routes
Dest         Gate        Flags  Refs  Use  Netif
Expire
default     203.56.180.4  UGSc    46   447  de0
127.0.0.1   127.0.0.1     UH      0    80   lo0
192.168.1   link#1        UC      0    0    de0 =>
203.56.180  link#1        UC      0    0    de0 =>

Question..Maybe defaultgateway should be
192.168.1.220?
------------------------------------------------
Symptoms:
1)DNS is working inside lan
2)Can't ping 203.56.180.0/24 addresses from the
outside Internet. More particularly the mail & web
servers are not pinging.
3) Lan can web surf no trouble
4) Sendmail cannot deliver mail outbound.
5) Cannot ping outside to any Internet address from
any live IP machine on the LAN more particularly
203.56.180.1(This will explain the sendmail's failure
to work I suppose)
6) A mail client on a multihomed lan host here is
configured to pick up mail from a remote mail host on
the net. It can do that!!!??? None of my stuff works
but this does...do not understand.

What I tried...
Stopping NAT & squid on ADSL gateway1
Pinging out and mailing to/from old gateway2. No go!

HELP...fresh out of ideas here. CAn some kind person
help out? It is probably really obvious but not to
this dummy
Thanks




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