Re: [LARTC] Routing problem

From: "gaston" <gaston@steel.com.ar>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Routing problem
Date: Mon, 08 Sep 2003 14:46:18 +0000	[thread overview]
Message-ID: <marc-lartc-106303235701603@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101530055025659@msgid-missing>

Well, I don't think its the cisco's problem. I think there is something
wrong with my linux routing config , here it is:

/proc/sys/net/ipv4 

icmp_echo_ignore_all:0
icmp_echo_ignore_broadcasts:0
icmp_ignore_bogus_error_responses:0
icmp_ratelimit:100
icmp_ratemask:6168
igmp_max_memberships:20
inet_peer_gc_maxtime:120
inet_peer_gc_mintime:10
inet_peer_maxttl:600
inet_peer_minttl:120
inet_peer_threshold:65664
ip_autoconfig:0
ip_conntrack_max:32656
ip_default_ttl:64
ip_dynaddr:0
ip_forward:1
ipfrag_high_thresh:262144
ipfrag_low_thresh:196608
ipfrag_time:30
ip_local_port_range:32768       61000
ip_nonlocal_bind:0
ip_no_pmtu_disc:0
tcp_abort_on_overflow:0
tcp_adv_win_scale:2
tcp_app_win:31
tcp_dsack:1
tcp_ecn:0
tcp_fack:1
tcp_fin_timeout:60
tcp_frto:0
tcp_keepalive_intvl:75
tcp_keepalive_probes:9
tcp_keepalive_time:7200
tcp_max_orphans:16384
tcp_max_syn_backlog:1024
tcp_max_tw_buckets:180000
tcp_mem:97280   97792   98304
tcp_orphan_retries:0
tcp_reordering:3
tcp_retrans_collapse:1
tcp_retries1:3
tcp_retries2:15
tcp_rfc1337:0
tcp_rmem:4096   87380   174760
tcp_sack:1
tcp_stdurg:0
tcp_synack_retries:5
tcp_syncookies:0
tcp_syn_retries:5
tcp_timestamps:1
tcp_tw_recycle:0
tcp_tw_reuse:0
tcp_window_scaling:1
tcp_wmem:4096   16384   131072

/proc/sys/net/ipv4/conf/ethX

accept_redirects:1
accept_source_route:1
arp_filter:0
bootp_relay:0
forwarding:1
log_martians:0
mc_forwarding:0
medium_id:0
proxy_arp:0
rp_filter:1
secure_redirects:1
send_redirects:1
shared_media:1
tag:0

-----Original Message-----
From: Ani <an2rhyme@yahoo.com>
To: gaston <gaston@steel.com.ar>
Date: Sat, 6 Sep 2003 03:07:14 -0700 (PDT)
Subject: Re: [LARTC] Routing problem

> if u r able to reach from ur client machine to cisco router ( but not
> outside ) then its the cisco configuration u need to check... send the
> cisco config and we can get back to u.
> 
> gaston <gaston@steel.com.ar> wrote:
> Internet
> |
> |
> ________|________
> | |
> | Cisco 2600 | | | 
> IP: 208.53.98.254 
> |_______________|
> |
> | 
> |
> |
> | 
> |
> ________|_________
> | |
> | Switch 1 | 
> |_______________|
> 
> | 
> |
> |
> | 
> |
> ETH0 ---> IP:208.53.98.198 Net 208.53.98.0/25
> ________|________
> | |
> | Linux | 
> |_______________|
> |
> ETH1 --> IP:208.53.164.254 Net 208.53.164.0/24 
> |
> |
> ________|_________
> | |
> | Switch 2 | ------ Clients 
> 
> |_______________|
> 
> Red Hat Linux 9
> Kernel: 2.4.20-8
> I used the traditional routing config (without iproute2)
> 
> 
> Routing table:
> 
> 208.53.98.128 0.0.0.0 255.255.255.128 U 0 eth0
> 208.53.164.0 0.0.0.0 255.255.255.0 U 0 eth1
> 169.254.0.0 0.0.0.0 255.255.0.0 U 0 eth1
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 lo
> 0.0.0.0 208.53.98.254 0.0.0.0 UG 0 eth0
> 
> 
> Cisco 2600 config:
> 
> ip route 208.53.164.0 255.255.255.0 208.53.98.198
> 
> 
> Problem:
> 
> This configuration didn't work. From the clients network (208.53.164.0)
> I
> could only reach the Cisco router but was unable to reach Internet. 
> 
> The only quick solution was to connect Switch 1 with Switch 2.
> 
> 
> Any ideas why this didn't work? 
> 
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