Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations Chriss Miller on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
Config between 3com and Cyclades
- Thread starter topoh
- Start date
- Thread starter
- #2
Sorry,
I forgot to give more information. I´m managing a VPN Frame Relay (WAN) with 4 branch offices (three 3com 3C2XX routers and one Cisco 805 router) and 1 central office (3com router 3C2XX). The company is expanding more 2 branch offices and it adquired two Path Routers (Cyclades) to install on each new branch office. I already checked LMI, DLCI´s and link integrity with Telecom provider and all are OK. The protocol on both routers interfaces (Branch->Cyclades and Central->3com Offices) goes "UP" but I can´t ping one router to another. I´m sure that configuration in Cyclades router is OK, because I had tested this in other link but communicating with Cisco router. I know that We had to configure an additional command "encapsulation frame-relay IETF" when linking with Frame Relay network a Cisco router with a Cyclades because the same problem occurr, We can´t ping from Cisco to Cyclades and vice-versa. Have I to do a additional configuration on 3com (Central office) router too ? Please, help me !!!
See some information of both routers configuration:
Central Office (3com):
IP LAN: 10.0.4.254 255.255.255.0
IP WAN: 10.254.250.25 255.255.255.252
Route 1: 0.0.0.0 0.0.0.0 !1 1
Route 2: 10.0.10.0 255.255.255.0 10.254.250.26 2
LMI: NTTLMI (Q.933 - ANNEX A)
DLCIR: 16 32
Bandwidth: 256 kbps
Branch Office (Cyclades):
IP LAN: 10.0.10.254 255.255.255.0
IP WAN: 10.254.250.26 255.255.255.252
Route 1: 0.0.0.0 0.0.0.0 10.254.250.25 2
Route 2: 10.0.10.0 255.255.255.0 !1 1
LMI: (Q)Q.933 - ANNEX A
DLCI: 16
Bandwidth: 256 kbps
Sorry my english !!!
I forgot to give more information. I´m managing a VPN Frame Relay (WAN) with 4 branch offices (three 3com 3C2XX routers and one Cisco 805 router) and 1 central office (3com router 3C2XX). The company is expanding more 2 branch offices and it adquired two Path Routers (Cyclades) to install on each new branch office. I already checked LMI, DLCI´s and link integrity with Telecom provider and all are OK. The protocol on both routers interfaces (Branch->Cyclades and Central->3com Offices) goes "UP" but I can´t ping one router to another. I´m sure that configuration in Cyclades router is OK, because I had tested this in other link but communicating with Cisco router. I know that We had to configure an additional command "encapsulation frame-relay IETF" when linking with Frame Relay network a Cisco router with a Cyclades because the same problem occurr, We can´t ping from Cisco to Cyclades and vice-versa. Have I to do a additional configuration on 3com (Central office) router too ? Please, help me !!!
See some information of both routers configuration:
Central Office (3com):
IP LAN: 10.0.4.254 255.255.255.0
IP WAN: 10.254.250.25 255.255.255.252
Route 1: 0.0.0.0 0.0.0.0 !1 1
Route 2: 10.0.10.0 255.255.255.0 10.254.250.26 2
LMI: NTTLMI (Q.933 - ANNEX A)
DLCIR: 16 32
Bandwidth: 256 kbps
Branch Office (Cyclades):
IP LAN: 10.0.10.254 255.255.255.0
IP WAN: 10.254.250.26 255.255.255.252
Route 1: 0.0.0.0 0.0.0.0 10.254.250.25 2
Route 2: 10.0.10.0 255.255.255.0 !1 1
LMI: (Q)Q.933 - ANNEX A
DLCI: 16
Bandwidth: 256 kbps
Sorry my english !!!
Hi, topoh
Try to add IP addres to exact DLCI. In basic you have to tell that this specific address is on this DLCI.
Command should be near to this - but check reference guide for you version of software:
>ADD –IP ADDR <remote IP netaddress fr.> @<dlci number>
You can display all know addresses:
>show -ip address
I have had same problem with 3com and NortelNetworks routers,
please just check MTU on 3com and on Cyclades. 3com software is often buggy and it reports different MTU. And if both ends have differen MTUs you have CRC errors on all packets.
Check system FR statistics on port (show -sys stats)for errors.
In 3com router you can see MTU size:
>sh -ip conf
Hope this help,
Brat
Try to add IP addres to exact DLCI. In basic you have to tell that this specific address is on this DLCI.
Command should be near to this - but check reference guide for you version of software:
>ADD –IP ADDR <remote IP netaddress fr.> @<dlci number>
You can display all know addresses:
>show -ip address
I have had same problem with 3com and NortelNetworks routers,
please just check MTU on 3com and on Cyclades. 3com software is often buggy and it reports different MTU. And if both ends have differen MTUs you have CRC errors on all packets.
Check system FR statistics on port (show -sys stats)for errors.
In 3com router you can see MTU size:
>sh -ip conf
Hope this help,
Brat
- Thread starter
- #4
Hi, topoh
You can't find it.
I have developed this metod for myself.
Maybe You can find it in 3com's knowledgebase but I am not sure.
Easiest way to troubleshoot is to have documentation. Try to download all informations from 3com's web site. You can find it there for free.
Hope this help,
Brat
You can't find it.
I have developed this metod for myself. Maybe You can find it in 3com's knowledgebase but I am not sure.
Easiest way to troubleshoot is to have documentation. Try to download all informations from 3com's web site. You can find it there for free.
Hope this help,
Brat
- Status
Similar threads
