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Old 08-30-2007, 12:02 PM   #1
franlinux
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Registered: Aug 2007
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can ping but cannot browse from branches(other subnets)


Hi guyz,

I have a linux mail and internet server at my head office. I ahve opened two more branches. these branches are in different network subnets from the head office one. i can ping the linux server but cannot telnet it.

I am failing to browse the internet or send mail from the branches but its working fine on my hheadoffice.

I am running feodora 9. had same problem on red hat.

what configuurations are need for branch networks to connect.

may you give the commands

thanks francis
 
Old 08-30-2007, 01:53 PM   #2
rossonieri#1
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Registered: Jun 2007
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hi,

have you install routes to those branches, and do NAT?

assuming lke this :

internet ---> HQ ---> site1, site2, site3

routes to create :
site1,2,3
default gateway = HQ
interface to HQ gateway = NATed with internal HQ ip addr.

and dont forget to activate that ip_forward thing.

that is it for now.

cheers..
 
Old 09-03-2007, 03:50 AM   #3
franlinux
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thanks. problem was just NAT. had not included branch networks.

I am now browsing
 
Old 09-03-2007, 07:18 AM   #4
lmangwanda
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Registered: Aug 2007
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I am also expriencing the same problem that external branches cannot access mail and internet yet users in remote branches can access our ERP software.I can ping the proxy from the remote sites.
My question is do i need to create subinterfaces on my proxy NIC or only one interface can do. i have network 10.10.3.0,network 10.10.4.0,10.10.5.0 and my HQ is 10.10.2.0.
i configured my router with the following configs:


Interface Tunnel0
Description LINK TO 10.10.4.0
Ip address 192.168.3.1 255.255.255.252
Tunnel source 10.0.0.146
Tunnel destination 10.0.0.147
Tunnel mode ipip
!
Interface Tunnel1
Description LINK TO 10.10.3.0
Ip address 192.168.4.1 255.255.255.252
Tunnel source 10.0.0.146
Tunnel destination 10.0.0.148
Tunnel mode ipip
!
Interface FastEthernet0/0
Description LINK TO HQ LAN
Ip address 10.10.2.99 255.255.255.0
Ip access-group 199 in
Ip access-group 199 out
Ip nat inside
Duplex auto
Speed auto
!
Interface FastEthernet0/1
Description LINK TO WAN AND ISP
Ip address 10.0.0.146 255.255.255.248 secondary
Ip address 216.104.196.114 255.255.255.252
Ip nat outside
Duplex auto
Speed auto
!
Router rip
Version 2
Network 10.0.0.0
Network 216.104.196.0
!
Ip classless
Ip route 0.0.0.0 0.0.0.0 216.104.196.113
Ip route 10.10.3.0 255.255.255.0 10.0.0.147 130
Ip route 10.10.4.0 255.255.255.0 10.0.0.148 130
!
Ip http server
Ip nat pool noc 216.104.196.114 216.104.196.114 prefix-length 30
Ip nat inside source list kuda_nat pool noc overload
Ip nat inside source static tcp 10.10.2.1 22 216.104.196.114 22 extendable
Ip nat inside source static tcp 10.10.2.1 25 216.104.196.114 25 extendable
!
ip access-list standard kuda_nat
Permit 10.10.2.0 0.0.0.255
Permit 10.10.3.0 0.0.0.255
Permit 10.10.4.0 0.0.0.255
Deny any
!
Access-list 199 deny tcp any any eq 135
Access-list 199 deny tcp any any eq 138
Access-list 199 deny tcp any any eq 139
Access-list 199 deny tcp any any eq 445
Access-list 199 permits ip any any


Am i missing something,Pliz yo help will be greatly appreciated

Regards,

Lee
 
  


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