can you count the letter t in:
q: unable to establish gre tunnel between linux-based instance and cisco router i would like to establish a gre tunnel connection between a cisco csr1000v and an ec2 instance that runs ubuntu 18.04.02 lts linux 4.15.

in r1 csr1000v the configuration is the following:
interface tunnel99
 ip address 10.10.10.2 255.255.255.0
 keepalive 2 3 
 tunnel mode gre ip
 tunnel source gigabitethernet1
 tunnel destination 54.148.34.17
 tunnel path-mtu-discovery
end

the tunnel interface description is the following  
interface          ip-address      ok? method status                protocol
gigabitethernet1   172.1.1.7       yes dhcp   up                    up
tunnel99           10.10.10.2      yes manual up                    down

in the ec2 instance, i got the following configuration
modprobe ip_gre
lsmod | grep gr
sudo ip tunnel add gre0 mode gre remote 35.163.97.129 local 172.2.2.11 ttl 255
sudo ip link set gre0 up
ip addr add 10.10.10.1/24 dev gre0

the problem is i couldnt ping the tunnels interface from both sides. and the gre0 interface shows a destination address as same as the tunnels ip address.
gre0: flags=209<up,pointopoint,running,noarp>  mtu 8977
        inet 10.10.10.1  netmask 255.255.255.0  destination 10.10.10.1
        inet6 fe80::200:5efe:ac00:106  prefixlen 64  scopeid 0x20<link>
        unspec ac-00-01-06-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (unspec)
        rx packets 171  bytes 4104 (4.1 kb)
        rx errors 0  dropped 0  overruns 0  frame 0
        tx packets 7  bytes 392 (392.0 b)
        tx errors 0  dropped 0 overruns 0  carrier 0  collisions 0


a: it turns out that mpls is not running the linux kernel 4.15 in aws. in order to install quagga with ldp daemon that runs sr mpls from a vm to another, the kernel must be updated or you need linux 4.5 or latest.

user
I found one hundred and two "t"s in the provided passage.
assistant