Date: Tue, 2 Sep 1997 22:41:34 +0000 From: "Riley J. McIntire" <rileyj@tgci.com> To: spork <spork@super-g.com> Cc: isp@FreeBSD.ORG Subject: Re: Moving server to different ethernet can I use the same IP #s Message-ID: <199709030556.WAA25211@train.tgci.com> In-Reply-To: <Pine.BSF.3.96.970903011329.10455B-100000@super-g.inch.com> References: <199709030415.VAA24888@train.tgci.com>
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> From: spork <spork@super-g.com> > To: "Riley J. McIntire" <rileyj@tgci.com> I really appreciate the info--I'm not comfortable with the cisco at all. Do you mind being a little more specific? > You came real close, you want to do exactly what you just did to > your machine on the Cisco as well... ie: > > enable > conf t > > int eth ? > > ip address old.net.here. mask secondary Not quite sure about the above--what is secondary? the old ip address? Like this int new.eth.ip.here old.net.here 255.255.255.0 old.ip.here so int 205.185.169.120 206.250.85.0 255.255.255.0 206.250.85.99 ??? > > exit > wr mem > > This will put a second address on the cisco, and "automagically" > make it see the your machine with the old number. > > The question is, does the rest of the internet know that this net is > reachable through this router? This is a nice hack to transition > from one provider to another with a router from Provider A and one > from Provider B on the same ethernet and all hosts answering to two > IPs, but otherwise, it will not really accomplish anything as all > traffic to these IPs will still head towards your original router. After thinking this through, I tend to agree it won't accomplish much...I only have the new router here...and the old network was a kludged effort at subnetting which I'm sure wasn't right (like I said I didn't set it up--but I do need to set one up properly here). > If you do have two providers on the same wire, be sure to give > *both* routers addresses on the other's net. And try to avoid > running RIP, as I believe it could cause quite a mess... Router is enabled and has been in rc.conf, but I did enable gateway--this runs RIP? Should I shut it down? I think I'll do it now until I find out...gateway is now off. I recall seeing some cautions here about using routed--do I need it? I was told to use it before I knew to be skeptical about the advice I was getting. :( > Charles > Again, thanks for the advice! Riley > On Tue, 2 Sep 1997, Riley J. McIntire wrote: > > > Hi, and help!, > > > > I've had to make a quick move of a web/mail/dns server. An involved > > story, but the old network is moving and the router was moved. > > I have use of the existing IP numbers for a bit, and need to use > > these until I can change them through the internic. I've physically > > moved the server to another ethernet with a different gateway and > > want to know how (if possible!) to set this up. The web server is > > most important, although no one is paying for this yet... > > > > At first I just tried adding a new gateway, but that didn't seem to > > work. > > > > What I've tried so far is bind an ip # from the new net to the > > interface. I can telnet to this ip number from the new network. > > The default gateway is now 205.185.169.1 (a cisco 2500) > > Do I need to add a route from the cisco to the old numbers? How? > > Speaking of which, the numbers are 206.250.85.99 to x.x.x.109. > > > > > > I'm using fbsd 2.2.2-R > > > > Parts of rc.conf, rc.local and /var/log/messages follow. > > > > If this can be done at all any help is appreciated. > > > > tia, > > > > Riley > > > > > > (Note- most of the network portions of rc.conf and rc.local were > > configured by someone else--I'm a bit new to this! ) > > > > Here's the pertinent part of rc.conf: > > > > ### Basic network options: ### > > hostname="charmed.wilshire.net" # Set this! > > nisdomainname="NO" # Set to NIS domain if using NIS (or NO). > > firewall="NO" # Set to firewall type or NO for none. > > tcp_extensions="YES" # Allow RFC1323 & RFC1544 extensions (or NO). > > network_interfaces="ed1 lo0" # List of network interfaces (lo0 is loopback). > > > > ##old network 206.250.85.0 > > #ifconfig_ed1="inet 206.250.85.80 netmask 255.255.255.0" > > ##net network 205.185.169.0 > > ifconfig_ed1="inet 205.185.169.120 netmask 255.255.255.0" > > > > ifconfig_lo0="inet 127.0.0.1" # default loopback device configuration. > > > > ### Network daemon (miscellaneous) & NFS options: ### > > syslogd_enable="YES" # Run syslog daemon (or NO). > > syslogd_flags="" # Flags to syslogd (if enabled). > > inetd_flags="" # Optional flags to inetd (always enabled). > > named_enable="YES" # Run named, the DNS server (or NO). > > named_flags="-b /etc/namedb/named.boot" # Flags to named (if enabled). > > kerberos_server_enable="NO" # Run a kerberos master server (or NO). > > rwhod_enable="NO" # Run the rwho daemon (or NO). > > amd_enable="NO" # Run amd service with $amd_flags (or NO). > > amd_flags="-a /net -c 1800 -k i386 -d my.domain -l syslog /host /etc/amd.map" > > nfs_client_enable="NO" # This host is an NFS client (or NO). > > nfs_server_enable="NO" # This host is an NFS server (or NO). > > weak_mountd_authentication="NO" # Running PCNFSD / other non-root nfsd (or NO). > > nfs_reserved_port_only="NO" # Provide NFS only on secure port (or NO). > > rpc_lockd_enable="NO" # Run NFS rpc.lockd (*broken!*) if nfs_server. > > rpc_statd_enable="YES" # Run NFS rpc.statd if nfs_server (or NO). > > portmap_enable="YES" # Run the portmapper service (or NO). > > portmap_flags="" # Flags to portmap (if enabled). > > xtend_enable="NO" # Run the X-10 power controller daemon. > > xtend_flags="" # Flags to xtend (if enabled). > > > > [snip time and info services] > > > > ### Network routing options: ### > > defaultrouter="205.185.169.1" # Set to default gateway (or NO). > > static_routes="" # Set to static route list (or leave empty). > > # Enable gateway for 206.250.85.0 to 205.185.169.0 9/2/97 rjm > > gateway_enable="YES" # Set to YES if this host will be a gateway. > > router_enable="YES" # Set to YES to enable a routing daemon. > > router="routed" # Name of routing daemon to use if enabled. > > router_flags="-q" # Flags for routing daemon. > > mrouted_enable="NO" # Do multicast routing (see /etc/mrouted.conf) > > ipxgateway_enable="NO" # Set to YES to enable IPX routing. > > ipxrouted_enable="NO" # Set to YES to run the IPX routing daemon. > > ipxrouted_flags="" # Flags for IPX routing daemon. > > arpproxy_all="" # obsolete kernel option ARP_PROXY_ALL equiv. > > > > Here's the pertinent rc.local > > > > # put your local stuff here > > > > /sbin/ifconfig ed1 alias 206.250.85.99 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.100 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.105 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.106 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.107 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.108 netmask 255.255.255.0 up > > /sbin/ifconfig ed1 alias 206.250.85.109 netmask 255.255.255.0 up > > /sbin/route add -net 205.185.169.0 -interface 205.185.169.120 -netmask > > 255.255.0 > > > > /var/log/messages > > > > > > Sep 2 20:43:10 charmed syslogd: exiting on signal 15 > > Sep 2 20:44:49 charmed /kernel: Copyright (c) 1992-1997 FreeBSD Inc. > > Sep 2 20:44:49 charmed /kernel: Copyright (c) 1982, 1986, 1989, 1991, > > 1993 Sep 2 20:44:49 charmed /kernel: The Regents of the > > University of Califo. Sep 2 20:44:49 charmed /kernel: Sep 2 20:44:49 > > charmed /kernel: FreeBSD 2.2.2-RELEASE #0: Tue Jul 8 21:37:42 7 Sep > > 2 20:44:49 charmed /kernel: > > rileyj@charmed.wilshire.net:/usr/src/sys/cD Sep 2 20:44:50 charmed > > /kernel: CPU: Pentium (119.75-MHz 586-class CPU) Sep 2 20:44:50 > > charmed /kernel: Origin = "GenuineIntel" Id = 0x526 Steppin6 Sep > > 2 20:44:50 charmed /kernel: > > Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX> Sep 2 20:44:50 charmed > > /kernel: real memory = 33554432 (32768K bytes) Sep 2 20:44:50 > > charmed /kernel: avail memory = 30789632 (30068K bytes) Sep 2 > > 20:44:50 charmed /kernel: Probing for devices on PCI bus 0: Sep 2 > > 20:44:50 charmed /kernel: chip0 <Intel 82437VX PCI cache memory > > controll0 Sep 2 20:44:50 charmed /kernel: chip1 <Intel 82371SB > > PCI-ISA bridge> rev 1 on 0 Sep 2 20:44:50 charmed /kernel: chip2 > > <Intel 82371SB IDE interface> rev 0 on p1 Sep 2 20:44:50 charmed > > /kernel: ahc0 <Adaptec 2940 SCSI host adapter> rev 0 in0 Sep 2 > > 20:44:50 charmed /kernel: ahc0: aic7870 Wide Channel, SCSI Id=7, 16 > > SCBs Sep 2 20:44:50 charmed /kernel: ahc0 waiting for scsi devices to > > settle Sep 2 20:44:50 charmed /kernel: (ahc0:0:0): "SEAGATE ST51080N > > 0958" type 0 fix2 Sep 2 20:44:50 charmed /kernel: sd0(ahc0:0:0): > > Direct-Access 1030MB (2109840 5) Sep 2 20:44:50 charmed /kernel: > > (ahc0:5:0): "TOSHIBA CD-ROM XM-3501TA 0315" ty2 Sep 2 20:44:50 > > charmed /kernel: cd0(ahc0:5:0): CD-ROM cd present [291470 x 204] Sep > > 2 20:44:51 charmed /kernel: Probing for devices on the ISA bus: Sep 2 > > 20:44:51 charmed /kernel: sc0 at 0x60-0x6f irq 1 on motherboard Sep 2 > > 20:44:51 charmed /kernel: sc0: VGA color <16 virtual consoles, > > flags=0x0> Sep 2 20:44:51 charmed /kernel: ed1 at 0x260-0x27f irq 10 > > on isa Sep 2 20:44:51 charmed /kernel: ed1: address > > 00:40:95:34:56:26, type NE2000 (1 Sep 2 20:44:51 charmed /kernel: > > sio0 at 0x3f8-0x3ff irq 4 on isa Sep 2 20:44:51 charmed /kernel: > > sio0: type 16550A Sep 2 20:44:51 charmed /kernel: sio1 at 0x2f8-0x2ff > > irq 3 on isa Sep 2 20:44:51 charmed /kernel: sio1: type 16550A Sep 2 > > 20:44:51 charmed /kernel: lpt0 at 0x378-0x37f irq 7 on isa Sep 2 > > 20:44:51 charmed /kernel: lpt0: Interrupt-driven port Sep 2 20:44:51 > > charmed /kernel: lp0: TCP/IP capable interface Sep 2 20:44:51 charmed > > /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa Sep 2 20:44:51 > > charmed /kernel: fdc0: NEC 72065B Sep 2 20:44:51 charmed /kernel: > > fd0: 1.44MB 3.5in Sep 2 20:44:51 charmed /kernel: wdc0 not found at > > 0x1f0 Sep 2 20:44:52 charmed /kernel: wt0 at 0x300-0x301 irq 5 drq 1 > > on isa Sep 2 20:44:52 charmed /kernel: wt0: type <Wangtek> Sep 2 > > 20:44:52 charmed /kernel: npx0 flags 0x1 on motherboard Sep 2 > > 20:44:52 charmed /kernel: npx0: INT 16 interface Sep 2 20:44:52 > > charmed /kernel: ccd0-3: Concatenated disk drivers Sep 2 20:44:52 > > charmed named[78]: starting. named 4.9.4-P1 Fri May 16 13:45:2d Sep > > 2 20:44:52 charmed named[79]: Ready to answer queries. Sep 2 20:44:56 > > charmed lpd[112]: restarted Sep 2 20:45:02 charmed routed[55]: punt > > RTM_ADD without gateway Sep 2 20:45:02 charmed routed[55]: > > write(rt_sock) RTM_ADD 206.250.85.0 --> 206s Sep 2 20:50:03 charmed > > su: rileyj to root on /dev/ttyv0 > > > > > > > > > >
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