I need mastes thesis topic about SDN (theory based and without writing a code ) Please help me because of I have not more time select topic and write thesis.  ... View more

Hi all,  I need mastes thesis topic about networking (theory based and without writing a code ) Please help me because of I have not more time select topic and write thesis.    Thanks ind advance  ... View more

Hi everyone,   We have became LIR (RIPE provide us with global subnet and BGP ASN), we have two router with two different ISP line and each ISP advertise our asn and prefix list so we use third router for internet and advretise our web services (NAT). We need failover for third router but want to define isp A primary and isp B for backup when isp A goes up to preempt isp A line. (for inbound and outbound route use same ISP ) ... View more

Hi everyone. I have own public ips and ASN and configuration BGP everything is ok. I can go to internet with my own IP. But when I want nat my internal subnet to my public ip and go to internet or do static nat not working. I want configuration nat on BGP router. Configuration:    interface Loopback0 ip address 10.10.10.10 255.255.255.0 interface GigabitEthernet0/0 no ip address duplex auto speed auto ! interface GigabitEthernet0/0.999 description to XDMX encapsulation dot1Q 999 ip address 32.20.193.206 255.255.255.252 ! interface GigabitEthernet0/0.555 encapsulation dot1Q 555 ip address 5.222.222.1 255.255.252.0 no ip proxy-arp ip nat outside ip virtual-reassembly in ! interface GigabitEthernet0/0.333 description LAN encapsulation dot1Q 333 ip address 192.168.22.1 255.255.255.0 ip nat inside ip virtual-reassembly in ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ! interface GigabitEthernet0/2 no ip address shutdown duplex auto speed auto ! router bgp 12345 bgp log-neighbor-changes network 5.222.222.1 mask 255.255.252.0 redistribute connected redistribute static neighbor 32.20.193.205 remote-as 78945 neighbor 32.20.193.205 version 4 neighbor 32.20.193.205 prefix-list 1 out ! ip nat pool TEST 5.222.222.1 5.222.222.1 netmask 255.255.252.0 ip nat inside source static tcp 192.168.22.2 80 interface GigabitEthernet0/0.555 80 ip nat inside source list 100 pool TEST overload ip nat inside source static tcp 192.168.22.2 53 5.222.222.1 53 extendable ip nat inside source static udp 192.168.22.2 5.222.222.1 53 extendable ip route 5.222.222.1 255.255.255.255 Null0 ! ! ip prefix-list 1 seq 5 permit 5.222.222.1/22 le 24 ip prefix-list 1 seq 10 permit 0.0.0.0/0 access-list 100 permit ip 192.168.22.0 0.0.0.255 any ... View more

Hi everyone we are become LIR so I need to request IPv4 and AS numbers from RIPE (RIR) we want to advertise BGP as for 2 ISP and is isp 1 will goes down we dont lost connection (failover between 2 isp). have anyone practice about RIPE or alternative and BGP for failover betwen ISPs.   Thanks in advance ... View more

Hi all,   we have 2951 routers and use eigrp redistribute list with acl(object gorup) when we have changed it to ASR 1001-x and ISR 4451 routers eigrp not get routing table with object group . I am waiting your suggestions      Thanks a lot ... View more

Hi all, We have a lot of switches in our network and vtp 1 configured (6500 is vtp server mode and others are client) we change core (vtp server mode) switch to 6807 xl(not in same vtp domain). After changing all is ok. But I have changed distribute switch (all servers and other switch connected to distribute(3750-e)) vtp mode from client to transparent, but lost connection between 1 subnet in virtual environment. after clear ip arp x.x.x.x can connect and ping but after 2-3 minutes lost again and cant connect till clear arp.(but all subnets in blade(virtual) servers work properly only x vlan but I can reach all x vlan ips except virtual). I don't understand what happen after 2-3 days now all work properly. I am waiting solutions from your experience.   Thanks in advance    ... View more