Fred, A few years ago this list was opened up to questions and discussions that aren't necessarily related to certification. In fact, discussions don't even have to be Cisco-related, although they usually are. You'll quite often see stuff like this around here, and many times people simply want to know if something can be done, not whether it's a good idea for it to be done. :-)
I have my doubts that this could be configured in such a way as to be reliable and stable, but who knows. I even gave a suggestion earlier that I now think won't work. I'm too tired at the moment to try it out, though. John ----- Original Message ----- From: "Reimer, Fred" To: Sent: Tuesday, July 22, 2003 9:29 PM Subject: RE: GRE TUNNEL/Ethernet-broadcast-like? [7:72738] > 12.2(15)T5 is a recommended version for the IP v4 exploit, as far as I know, > see (http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml). > Are you suggesting that it is not appropriate? Do you recommend that we > configure an "unreleased and unsupported feature?" > > I would not recommend that in a CCIE lab, as they are historically behind in > IOS releases, and will not likely support a configuration in a 12.3 version > specific command, as a valid solution since they are not even going to > support 12.2 until this Fall... > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary information which > may be legally privileged. It is intended only for the named recipient(s). > If an addressing or transmission error has misdirected the email, please > notify the author by replying to this message. If you are not the named > recipient, you are not authorized to use, disclose, distribute, copy, print > or rely on this email, and should immediately delete it from your computer. > > > -----Original Message----- > From: Luan Nguyen [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 22, 2003 10:02 PM > To: 'Reimer, Fred'; [EMAIL PROTECTED] > Subject: RE: GRE TUNNEL/Ethernet-broadcast-like? [7:72738] > > Uhm, > Why don't you just put the command there and see what's going on. I > don't mess with 12.2.15Tx any more since, FYI, it has a bug with EIGRP > stub connected - forgot the bugID, but if you have a spoke with that > command, the hub won't withdraw routes even if the hub doesn't have that > route any longer. > Okay, to the main topic - I run 12.3.1 on a 7206VXR and I could > configure bridge-group on the tunnel interface. > interface Tunnel10 > bandwidth 1500 > ip unnumbered Loopback1 > ip mtu 1440 > ip hello-interval eigrp 2002 10 > ip hold-time eigrp 2002 40 > keepalive 10 4 > tunnel source 172.16.1.140 > tunnel destination 172.16.3.144 > bridge-group 1 > bridge-group 1 spanning-disabled > > But it does say this :" > CS140(config-if)#bridge-group 1 > % This command is an unreleased and unsupported feature > > -luan > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > Reimer, Fred > Sent: Tuesday, July 22, 2003 5:48 PM > To: [EMAIL PROTECTED] > Subject: RE: GRE TUNNEL/Ethernet-broadcast-like? [7:72738] > > Wow, I hope you don't try that on your CCIE lab! Last I heard, bridging > was > not supported on tunnel interfaces. At least it's not on the 12.2(15)T5 > running on a 2651XM router I just tested. If you find a (recent, > supported) > version of IOS that supports "bridge-group" in a tunnel interface please > let > me know. > > I think proxy ARP is more what is needed here, if we are talking about > IP > traffic. If not, then IOS should support the other protocol in the > tunnel > (it supports AppleTalk, Banyan VINES,CLNS, DECnet, IP, or IPX). If it's > "raw" NetBIOS or SNA, then setup DLSW peers... > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary information > which > may be legally privileged. It is intended only for the named > recipient(s). > If an addressing or transmission error has misdirected the email, please > notify the author by replying to this message. If you are not the named > recipient, you are not authorized to use, disclose, distribute, copy, > print > or rely on this email, and should immediately delete it from your > computer. > > > -----Original Message----- > From: Luan Nguyen [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 22, 2003 4:20 PM > To: [EMAIL PROTECTED] > Subject: RE: GRE TUNNEL/Ethernet-broadcast-like? [7:72738] > > Uhm. Never done this or heard of this before. I would just do > something like: > Interface LAN 1 > Bridge-group 1 > Interface tunnel 1 > Source WAN > Destination REMOTE_WAN > Bridge-group 1 > > Since, concurrent routing and bridging makes it possible to both route > and bridge a specific protocol on separate interfaces within a router, > then WAN just route and LAN/Tunnel just bridge :) > > If that not work for you, then maybe try intergrated routing and > bridging - create a BVI and source the tunnel from that interface. > > -luan > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 22, 2003 1:34 PM > To: [EMAIL PROTECTED] > Subject: GRE TUNNEL/Ethernet-broadcast-like? [7:72738] > > > Hello, > > A question barely came up to mind: Would it be possible to "join" a > broadcast domain, not by means of a LAN switch but from one remote > router to another, using GRE Tunnels? > > Since I haven't done it before, I kind of thought that it'll be > possible. For instance, having: > > R1eth0(no ip address)--GRE > TUNNEL-Ser0--CLOUD--GRE_TUNN--Ser1---R2eth0(no ip > address) > , where arp packets may flow from R1 to R2 via this GRE Tunnel. > > Under this scenario and simply put, can R1'sLAN be also part of R2'sLAN? > If it's possible, how could the config be like? > > Best regards, Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72777&t=72738 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
